Question
Write two properties of a material suitable for making (a) a permanent magnet, and (b) an electromagnet
Write two properties of a material suitable for making (a) a permanent magnet, and (b) an electromagnet
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Solution
Permanent magnet- low permeability, high retentivity and high coercivity
Electromagnet - high permeability, low retentivity and low coercivity
Permanent magnet- low permeability, high retentivity and high coercivity
Electromagnet - high permeability, low retentivity and low coercivity
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