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Difference between permanent and electromagnet |
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Answer» \tElectromagnetPermanent MagnetThe magnetic properties are displayed when current is passed through itMagnetic properties exist when the material is magnetizedThe strength is adjusted depending upon the amount of flow of currentThe strength depends upon the nature of the material used in its creationRemoval of magnetic properties is temporaryOnce magnetic properties is lost, it becomes uselessIt requires a continuous supply of electricity to maintain its magnetic field.It doesn’t require a continuous supply of electricity to maintain its magnetic fieldIt is usually made of soft materialsIt is usually made of hard materials\t Permanent magnets have magnetism as an intrinsic property which can be lost only when they are kept in sunlight or they are made to fall from a great height, whereas, electromagmets are given the power of magnetism by passing current through them so their power can be switched of by stopping the supply of electric currentAlso, permanent magnets have a fixed range of power and in the case of electromagnets, their power can be controlled(increased or decreased) by supplying more or less electric current. Permanent magnets power do not depend on factors like currentElectromagnets power depend on factors like current |
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