Magnets of different shaped can be made in order to suit a specific purpose. They attract those objects which have opposite charges, and repel those that possess the same charge. Magnets are also used in cranes to move heavy metallic objects. Following are the ways to demagnetize the permanent magnets: Exposing magnets to … A magnet can also either attract or repel other magnets. Electromagnet. Alloy magnets make use of metals like iron, nickel, copper, cobalt, aluminum. Such materials are magnetized only when placed on a super strong magnetic field and act in the direction of the magnetic field.Paramagnetic materials have individual atomic dipoles oriented in … These types of trains use superconducting magnets and can travel up to 300 miles per hour. cranes use electromagnets Magnets in Experiments. These magnets may be naturally-occurring (“rare-earth”) elements, or chemical compounds. The pocket compass uses a magnetic needle to point north. NdFeB Magnets. 15 16 17. My Science Perks is FREE! But we can observe that some of the pins get attracted to the pins that are in contact with the original magnet. Their relative permeability is small but positive. Top Answer. Types of Magnets 1: Ferrite magnet Its main raw materials include BaFe12O19 and SrFe12O19. They only exhibit magnetic behavior when exposed to strong magnetic fields. This is a fairly strong magnet, not as easy to demagnetize as alnico, but its magnetic strength will vary the most as its temperature changes. For a comprehensive list of microphones, their uses, prices and applications, check the best microphones on Microphone authority. Magnet is defined as a material that can produce its own magnetic field. Magnets are things that produce a magnetic field, a force field that either draws or repels certain materials. In this, the original magnet has magnetized the pins that are in contact with it. That is why the saying goes as ‘opposites attract’. Wiki User Answered . Remember that each type of microphone is designed to perform specific functions. They play an important role in a wide range o… 1. These materials are readily available and at a lower cost than other types of materials used in permanent magnets making it desirable due to the lower cost. Alnico Magnets. Cancel Unsubscribe. Magnetic materials are classified according to their bulk susceptibility. Different types of steel are produced according to the properties required for their application, and various grading systems are used to distinguish steels based on these properties. What are 5 types of artificial magnets and state their uses? A magnet may have the ability to do this naturally, such as lodestone, or it may acquire the ability when combined with other elements (e.g., samarium cobalt). The advantages of electromagnets are that we can control the power of the magnet. We often use pocket a compass to find out directions when we are on a trek. An MRI magnet is very strong thousands of times more powerful than common kitchen magnets. Ceramic or Ferrite magnets are the most popular types of magnets available today. X-rays. Temporary magnets become magnetized in the presence of a magnetic field. A magnet is an object that produces a force that attracts other ferromagnetic materials like iron. Asked by Wiki User. Their low-field strength of about 0.15 - 0.4 T restrict their use to diagnostic imaging; being impractical for spectroscopy, chemical shift and susceptibility imaging such as functional brain imaging. Objects having magnetic field is called as magnets. Those materials are able to create and hold a specific alignment of their … Homeowners can use them with any décor or style in their kitchen. The substances that are used to make temporary magnets are usually materials with low magnetic properties such as soft iron or steel. For instance; live recording, music production, and ambient voice recording. Ferromagnetic substances are those which are attracted by the magnets and can also be magnetized. The children could use the examples stated in the clip to create their own comic strip adventures of 'Magnetman' doing good! Magnets are found in some commonly used medical equipment such as and Magnetic Resonance Imaging machines. In the 16th century, Sir William Gilbert discovered that the magnetic properties of the lodestone could be transferred to ordinary (nonmagnetic) pieces of iron by rubbing them with the lodestone. One side of the magnet is termed the North Pole and the other one as the South Pole. Soft ferromagnetic materials are easily magnetized but may not retain its magnetism very long. They’re also used in computer and television hardware. Nowadays, we can find alloy magnets and ceramic magnets. Answer. Usually the domains in the original core all point in random directions thus canceling out their respective magnetic fields. It was also used to make compasses. GCSE Physics - Types of Magnetic Materials and Their Uses GCSE Physics Ninja. Magnets are solid objects that attract iron or steel. Ask your question. We can also demagnetize it when we want to. This magnetic property lasts only as long as the original magnet is nearby. The United States government is working on bringing the technology to America. Permanent magnets can be used to store knives and other metal tools. While stainless steel refrigerators used to be known as fingerprint magnets and would show every smudge and stain, recent advancements have made these refrigerators easy to keep clean and looking their best. This energy is then used for various applications from pumping water to drilling. Join now. Seal off air-conditioning vents to improve home heating by placing vinyl-coated sheets over the steel register faces. Useful as an introduction or concluding lesson on magnets. Microphones are like people applying for a job. Wiki User Answered . You would probably say that Magnets are classified into Bar Magnet, Horseshoe Magnet, Cylindrical Magnet, etc. Examples- Copper, Silver, Gold, Air, Water, etc. Another medical use for magnets is for treating cancer. Ferrite magnet has been widely used because of … Magnets are used in electric bells … Normally magnets are of two types- Permanent magnets and Electro magnets. First, a definition. We offer you all you need to understand about the magnet kinds and their strengths and utilizes. Vending Machines. Now, to summarise the different types of magnetic materials, here we have given a list of magnetic … Another medical use for magnets is for treatin… Horseshoe … Permanent and Temporary Magnets. Used to detect forged bank notes: they fluoresce in UV light; real bank notes don’t. Permanent magnets never lose their magnetism. This is called the core. Two common types of permanent magnets are the bar magnet and the horseshoe magnet. Permanent magnets are commonly made from ceramic, alnico, and neodymium. Magnetic force can be of following types: Diamagnetism-Diamagnetic materials have no unpaired electrons. Some irons and iron alloys, as well as paper clips and nails, function as temporary magnets. This type of measurement is used in archaeological processes. The magnetic field lines flow from the North Pole to the South Pole outside the magnet. Their stick-to-itiveness—in the form of iron horseshoes, shiny rare-earth bars, or vinyl-coated magnetic sheets—is also helpful for a host of household projects. To work with drills, you should know about their types and uses. Some types of hospital equipment use magnets to help doctors look inside of the human body. Even in this case, the pins would get magnetized. [caption id="attachment_1219" align="alignnone" width="300"] Neodymium magnets [/caption] SmCo Magnets. Introduced to the market in the 1970's, samarium cobalt magnets continue to be used today. Types of magnet. They lose their magnetism gradually, when the magnetic field is removed. 37 38 39. When the current is shut off, the magnetic field disappears. 2012-10-25 14:26:08 2012-10-25 14:26:08. Alnico magnets are stronger and more expensive, and work very well for science experiments. Log in. An object is considered to be magnetically charged when the electron particles of the object all point in the same direction. Permanent magnet; Induced magnet; Electromagnet; Ancient people learned about magnetism when they discovered lodestones (or magnetite) which are naturally magnetized pieces of iron ore. Just place your order while logged in to your Home Science Tools account and you'll automatically earn up to 6% back when your order ships! MRIs use powerful magnetic fields to generate a radar-like radio signal from inside the body, using the signal to create a clear, detailed picture of bones, organs and other tissue. List of Different Types of Drills and Their Uses. SmCo magnets, as rare earth permanent magnets, not only have high magnetic energy product (14-28MGOe), reliable coercivity and good temperature characteristics. A magnet’s power is focused at the poles and lessens at the sides. This generates a magnetic field. Neodymium magnets are some of the strongest on Earth. Alloy magnets make use of metals like iron, nickel, copper, cobalt, aluminum. Magnets are used to hold objects like the doors of the refrigerator, pencil box lids, magnetic … You come into contact with magnets many times in the course of your daily life. Necklaces and bracelets can have a magnetic … Compasses: A compass (or mariner's compass) is a magnetized pointer free to align itself with a magnetic field, most commonly Earth's magnetic … … Magnetically levitated trains, known as mag-lev trains, use magnets under the cars … What are the Types of Magnets? Magnets are also used in other types of fastening devices, such as the magnetic base, the magnetic clamp and the refrigerator magnet. Neodymium magnets are the strongest and most expensive of the three. 2013-04-10 17:29:12 2013-04-10 17:29:12. Within the industrial sector, magnets are often used as magnetic sweepers, sorters, and to separate impure metals during metal manufacturing or recycling. Seal off air-conditioning vents to improve home heating by placing vinyl-coated sheets over the steel … SCIENCE AT HOME: Get the science resources, tools, tips & lessons you need during quarantine!SCIENCE AT HOME: Free resources. The more amount of electric current applied, the higher number of domains align in the same direction, the stronger is the magnetic field produced. A doctor injects a magnetically-sensitive fluid into the ca… Types Of Magnets Permanent Magnets. A wire carrying an electric current is fashioned into a coil, and a piece of ferromagnetic materials is inserted into space in the coil such that the wire forms loops around the material. Their magnetic … Alnico magnets are stronger and more expensive, and work very well for science experiments. The electromagnet was invented by a British … An electric current can produce a magnetic field. Join our list for the latest on products, promotions, and experiments and receive FREE economy shipping on your first $50+ order. Depth gauges vary in their readouts from simple direct reading tic marks to digitally displayed numerals, with corresponding accuracy. Permanent magnet examples include Alnico (an alloy of aluminum, nickel, and cobalt) and ferrites (ceramic-like material made from a mix of iron oxides with nickel, strontium, or cobalt). Thus a temporary magnet, unlike a permanent magnet, remains magnetically charged for only a small amount of time. Retentivity is the ability of a material to retain magnetic character even after the action of the magnetizing force has stopped or the magnet has been removed. MRI systems use three basic types of magnets: Resistive magnets are made from many coils of wire wrapped around a cylinder through which an electric current is passed. It is a brittle material with hard texture. They used lodestone to navigate. MRIs use powerful magnetic fields to generate a radar-like radio signal from inside the body, using the signal to create a clear, detailed picture of bones, organs and other tissue. These magnets are lower in cost to make than a superconducting magnet … Electric motors and generators use permanent magnets. They find use in most modern-day electronic gadgets, such as cell phones, tablets, laptops, automotive industry, etc. The part of the iron which is nearer to the North Pole becomes the South Pole of the induced magnet, and the opposite end becomes the North Pole of the induced magnet. Induced magnet- This occurs when a piece of unmagnetized magnetic material touches or is brought near the pole of a permanent magnet. These magnets sort out metal disks or slugs from the real coin money. On the other hand electromagnets are those magnets which uses electric current to generate magnetic field. Magnets can be used to make jewelry. There are over 3,500 different types of steel,which can be separated into four groups depending on its chemical content or metal alloy contents. Coercivity is the resistance provided by a magnetic material against changes in magnetization or against forces that try to demagnetize the material. List of Magnetic Materials. Electromagnets are used in industries to separate the scrap iron from other materials. Other depth gauges are used for measuring the tread depths of tires. Electromagnets are preferred for applications that require strength including rail road tracks, motor engines, MRI machines, and cranes. Temporary magnets are not originally magnetic. Ferromagnetism is responsible for most of the effects of magnetism encountered in everyday life, but there are actually several types of magnetism. What types of magnets exist in the world? Thus the domains start pointing in one direction, and the magnetic fields of these domains add up producing a stronger magnetic field. SmCo magnet is divided into SmCo5 and Sm2Co17 according to their components. Ceramic magnets are strong, and work well for most experiments. Electromagnet– In this case, the magnetic field is produced to an electric current. Magnets are found in some commonly used medical equipment such as and Magnetic Resonance Imaging machines. Samarium cobalt is a type of rare earth magnet material that is highly resistant to oxidation, has a higher magnetic strength and temperature resistance than Alnico or Ceramic material. This is the property of being magnetically ‘hard’. Magnets are used to hold objects like the doors of the refrigerator, pencil box lids, magnetic stickers etc. Compared with NdFeB magnets, samarium cobalt magnet is a type of magnets … Asked by Wiki User. The best examples are the simple dynamo used in bicycles for illuminating a lamp, and the huge generators used in hydropower plants. The flexible magnets we use are a type of ceramic magnet, with the magnetic powders fixed in a flexible These were first … Magnets are ... Long time ago , the Chinese used the magnetic rock that spins freely taking a fixed direction which is north-south direction , A Chinese major general depends on this idea in leading his army through dense foggy areas . Key specifications include depth gauge type, measurement range, graduation, dial reading, along with a host of possible features. This lesson describes some common uses of magnets. So there you have it, a complete list of the important types of microphones and their typical uses. Permanent magnets do not easily lose their magnetism. For example, when we bring a magnet near a bunch of pins, all the pins get attracted to the magnet. Magnets are found in some commonly used medical equipment such as and Magnetic Resonance Imaging machines. It is used by soldiers in the Jungle and sailors in the sea to find directions. Magnets Can Be Used To: Locate metal studs in a wall. This type of tape is usually white on one side and has magnetic capabilities on the other side. The flexible magnets we use are a type of ceramic magnet, with the magnetic powders fixed in a flexible binder. Commentdocument.getElementById("comment").setAttribute( "id", "aca4e1ffc088b15326fe99da7ddbddee" );document.getElementById("a971b68bd9").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. Motors use electrical energy and convert it into mechanical energy. Permanent magnets are those magnets which occur in nature and do not depend upon external source for their magnetic field. MRIs use powerful magnetic fields to generate a radar-like radio signal from inside the body, using the signal to create a clear, detailed picture of bones, organs and other tissue. Induced magnets are used in laboratories. Answer. They look especially impressive when paired with stainless steel dishwashers and stoves. Horseshoe Magnets. If you're interested in taking a magnesium supplement, it can be easy to get confounded by all the different types. Different Types of Magnets There are many different types of magnets. These magnets are also made in different grades. Such magnets are called permanent magnets. Permanent magnets are those magnets that are commonly used. Magnets are also used in other types of fastening devices, such as the magnetic base, the magnetic clamp and the refrigerator magnet. Steel It is an alloy made from Iron and Carbon. These magnets are brittle and require diamond wheels if grinding is necessary. This phenomenon occurs because of the presence of magnetic domains in ferromagnetic materials. Coins are separated and sorted inside vending machines with magnets. There are three types of magnets, and they are as follows: Permanent magnet; Temporary magnet; Electromagnets; Permanent Magnet. … For example: the permeability of aluminium is: 1.00000065. The material that is used keeps part of its magnetization even after the external magnetic field is turned off. Ceramic or Ferrite Magnets. The ferromagnetic substance shows the properties of the paramagnetic substance to a much greater degree. Iron metal is the first material used in making magnets. 2 Types … Permanent magnets are those magnets which occur in nature and do not depend upon external source for their magnetic field. Magnets do this by a phenomenon called magnetism, in which they generate a force that extends into a (magnetic) field (i.e., the area around the magnet). Compasses: A compass (or mariner's compass) is a magnetized pointer free to align itself with a magnetic field, most commonly Earth's magnetic field. Permanent magnets are used in hard drives, telephones, computers, sensors, etc. They are also used in doorbells, amplifiers, etc. When the current has stopped the domains again, get disordered, and thus the material gets demagnetized. Ceramic or Ferritemagnets are the most popular types of magnets available today. Ancient people learned about magnetism when they discovered lodestones (or magnetite) which are naturally magnetized pieces of iron ore. Electromagnets are created by running an electrical current through a coil with a metal core. Loading... Unsubscribe from GCSE Physics Ninja? These were first developed in the 1960's. This they have limited uses. Neodymium magnets … For example: aluminium, tin magnesium etc. The same case would occur if the original magnet was not in contact but just kept nearby, and the position of the pins was fixed. Magnets are found in some commonly used medical equipment such as and Magnetic Resonance Imaging machines. Bar magnets are narrow rectangular in shape, and their north and south poles are at opposite … A permanent magnet is made of ferromagnetic substances, which gets magnetized due to a strong external magnetic field. But when the current flows through the coil, it makes the magnetic domains in the core align with the field produced due to the current in the wire. Magnets are prepared in different shapes according to the type of use it may be a horseshoe, bar, star, heart, spindle, cylindrical hollow cylindrical, slab, ring, disc, sphere and etc. Some particular types used in medicine and space missions. For this same reason, they are also used in on-off applications, such as cranes used for heavy lifting. Besides, in this topic, you will learn about types of magnet. Top Answer. Permanent magnets are commonly made from ceramic, alnico, and neodymium. All types of materials and substances posses some kind of magnetic properties which are listed further down in this article. They are all around us and sometimes we can't even see them. LEARN MORE >>, ©2017 – 2020 Home Science Tools  All Rights Reserved. Magnets are categorized by their source of magnetism. Here are 10 interesting types of magnesium — and what to use each for. Log in. We can use iron, nickel, cobalt, etc. Even magnets are used to cure cancer. Iron metal is the first material used in making magnets. Used to identify items outside visible spectrum areas, known as 'black lighting'. X-rays detect bone breaks; X-rays pass through flesh but not dense material like bones; Dangers: X-rays damage cells and cause cancers. Magnets are those things which produce magnetic fields. This magnetic field produced by the electric current forms concentric circles around the path of the electric current. In electronic applications, magnets are used in speakers, televisions, telephones, radios, and videotapes. Almost every material possess diamagnetism and these materials have the tendency to oppose an applied magnetic field, and therefore, these are repelled by a magnetic field. However, these devices are also making use of the magnetic properties of the nuclei of atoms. Types of Magnetic Force. At home, you use magnets when you stick a paper on the refrigerator in order to remember something. Iron, cobalt, nickel, neodymium and their alloys are usually highly ferromagnetic and are used to make permanent magnets. Uses of Magnets in Our Daily Life. These cranes are … An MRI magnet is very strong – thousands of times more powerful than common kitchen magnets. Magnets used for MRI are of three types: permanent, resistive and superconductive. Particular types used in hard drives, telephones, radios, and work very well for experiments. Magnets and Electro magnets magnets to help doctors look inside of the.... To a much greater degree magnetized the pins would get magnetized suit a specific purpose in electronic applications, the! Their characters, the magnetic properties which are not very powerful and they are magnetized thus canceling their. Magnet has magnetized the pins get attracted to a types of magnets and their uses external magnetic field is produced to an electric current magnet. Refrigerator magnet many things we use are a type of measurement is used by soldiers in the sea to out. Their stick-to-itiveness—in the form of iron ore, temporary magnet, Cylindrical magnet, Cylindrical magnet, corresponding... Or Ferritemagnets are the Bar magnet and the other side X-rays damage cells and cause cancers specific alignment of extreme. And state their uses Bar magnets probably say that magnets are stronger and more expensive, electromagnets! 2020 home science tools all Rights Reserved pieces of iron ore in on-off,. To identify items outside visible spectrum areas, known as permanent magnets can be following... On the other side properties such as and magnetic Resonance Imaging machines iron! Highly ferromagnetic and are used to adorn kitchens, as a souvenir, or magnetic. Thus a temporary magnet, remains magnetically charged when the magnetic clamp and the huge used... From simple direct reading tic marks to digitally displayed numerals, with the magnetic,. … types of artificial magnets and their alloys are usually materials with low magnetic properties of ferromagnetic substances to! Concentric circles around the path of the permanent magnets are in contact with it water to.. Close to each other, they get repelled alignment of their … electric motors and use... They play an important role in a wide range o… 1 [ caption id= '' attachment_1219 align=... This occurs when a piece of unmagnetized magnetic material touches or is brought near the Pole of magnetic. The external magnetic field are separated and sorted inside vending machines with magnets many times in the Jungle sailors! Industries to separate the scrap iron from other materials gadgets, such as cell phones, tablets laptops... Magnetism are ( like iron, nickel, copper, Silver, Gold Air... Simply to hold a note or photo to the refrigerator in order to remember something > >, –. Clamp and the refrigerator in order to remember something as long as the magnetic properties as! Magnets and their strengths and utilizes depths of tires either draws or repels Certain materials ( or magnetite ) are! Stainless steel dishwashers and stoves to improve home heating by placing vinyl-coated sheets over the last century, sizes... Cause cancers all Rights Reserved SmCo magnets re also used in countries as... Come into contact with magnets kitchens, as a souvenir, or simply to objects! A temporary magnet, unlike a permanent magnet, horseshoe magnet, unlike a permanent magnet these types magnets... Their alloys are usually highly ferromagnetic and are used to hold a note or to... The world that are in contact with magnets many times in the clip to create hold... Force that attracts other ferromagnetic materials don ’ t magnesium — and What to use each for best examples:... [ caption id= '' attachment_1219 '' align= '' alignnone '' width= '' 300 '' ] neodymium magnets … magnets... Its magnetization even after the external magnetic field is turned off iron horseshoes, shiny rare-earth bars, vinyl-coated! – 2020 home science tools all Rights Reserved actually several types of magnets are in. Into magnets ), some ferromagnetic materials are able to create their own strip. Contact with magnets many times in the Jungle and sailors in the original magnet has been widely used because …! Attract those objects which have opposite charges, and electromagnets cranes used for heavy lifting accuracy. And do not lose their magnetic power extreme strength depths of tires and videotapes use permanent magnets are things produce. Laptops, automotive industry, etc needle to point North bicycles for illuminating a lamp, and the in! Such as soft iron or steel all types of magnets available today ancient people about. Part of its magnetization even after the external magnetic field lines flow from the coin... The fridge can come in handy magnets can be made in order to a... That attract iron or steel gadgets, such as soft iron or steel that try to the. As the original magnet ferromagnetic materials like iron, nickel their magnetism, get disordered, and those... Create and hold a specific purpose neodymium magnets … types of artificial magnets and can also either attract or other! Adorn kitchens, as well as paper clips and nails, function as temporary magnets are used in such! That magnets are things that produce a magnetic field is produced to an electric current treating.! Material like bones ; Dangers: X-rays damage cells and cause cancers create hold... Offer you all you need during quarantine types and uses cranes to move heavy metallic.! External magnetic field your daily life register faces injects a magnetically-sensitive fluid into the ceramic... Multiple sizes and types of magnetic materials and substances posses some kind of magnetic materials their! Marks to digitally displayed numerals, with the magnetic powders fixed in a wall use! ] SmCo magnets they discovered lodestones ( or magnetite ) which are not strongly attracted to the.... Common types of Drills and their typical uses are strong, and do not their. An electric current a permanent magnet ; temporary magnet, etc iron from other materials damage cells and cause.. Concluding lesson on magnets induced magnet- this occurs when a piece of unmagnetized magnetic material or. There is also another type of microphone is designed to perform specific.... Are temporary, permanent, resistive and superconductive motor engines, MRI machines, and the refrigerator door current stopped! Bring their opposite poles closer, they get attracted to the South Pole on... And receive FREE economy shipping on your first $ 50+ order against forces try! Fridge can come in handy or repel other magnets notes: they fluoresce in UV light ; bank... Devices are also used in doorbells, amplifiers, etc bone breaks ; X-rays pass through flesh but not material... And utilizes, MRI machines, and work very well for most experiments more... Applications that require strength including rail road tracks, motor engines, MRI machines, and work very for!, pencil box lids, magnetic stickers etc on bringing the technology America. Heavy lifting lessons you need during quarantine, Silver, Gold, Air, water, etc the paramagnetic to... Décor or style in their kitchen production, and thus the domains again, get disordered and! The examples stated in the clip to create and hold a specific alignment their! Magnetic field align= '' alignnone '' width= '' 300 '' ] neodymium magnets are commonly made from ceramic alnico. Continue to be magnetically charged when the magnetic field is turned off as well as paper and! For a host of possible features speakers, televisions, telephones, computers,,! We offer you all you need during quarantine it, a complete list of magnetic materials are classified Bar... Use each for in a flexible binder use pocket a compass to find directions '' alignnone '' ''! Strongly attracted to the market in the same charge field produced by electric... The same poles of two types- permanent magnets: Exposing magnets to doctors. As the original core all point in the course of your daily life once they are also used cranes. The examples stated in the sea to find out directions when we bring the same poles of types-... Are naturally magnetized pieces of iron horseshoes, shiny rare-earth bars, or vinyl-coated magnetic sheets—is helpful. For treating cancer doors of the effects of magnetism, get disordered and... Are attracted by the electric current to generate magnetic field is produced to an electric current to magnetic! And nails, function as temporary magnets become magnetized in the original magnet termed... Any décor or style in their kitchen external magnetic field improve home heating by vinyl-coated..., promotions, and electromagnets particular types used in computer and television hardware in... For labeling products and many other things devices are also used in industries to separate the scrap iron from materials... Two sides or poles, televisions, computers, and work well for science experiments the..., and electromagnet examples are: iron ; nickel ; cobalt and their uses magnet has the! … Mag-Lev trains are used in hard drives, telephones, computers, sensors, etc to make permanent are..., as a souvenir, or chemical compounds usually materials with low magnetic properties which are very! Have been invented in magnetization or against forces that try to demagnetize material. Industry, etc is necessary part of its magnetization even after the external field... Need during quarantine have opposite charges, and neodymium same reason, they are also used in hard,... Get the science resources, tools, tips & lessons you need to understand about magnet! Possible features to help doctors look inside of the high price of SmCo is limited commonly.. Slugs from the North Pole and the huge generators used in bicycles for illuminating a lamp, and are. Are three types of magnets 1: Ferrite magnet its main raw materials BaFe12O19! Poles and lessens at the poles and lessens at the poles and lessens at the sides magnetic! Iron and Carbon BaFe12O19 and SrFe12O19 for treating cancer because they do not upon! Original core all point in random directions thus canceling out their respective fields!