What should be the resistivity of materials u | vedclass

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(A) The material used for the core of an electromagnet should have high resistivity.This is because high resistivity reduces the magnitude of eddy cur

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High resistivity

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(A) The material used for the core of an electromagnet should have high resistivity.This is because high resistivity reduces the magnitude of eddy currents induced in the core when the magnetic flux changes.By minimizing eddy currents,the energy loss in the form of heat is significantly reduced,thereby increasing the efficiency of the electromagnet.

What should be the resistivity of materials used for electromagnets,and why?

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