Assertion: Electromagnets are made of soft ir | vedclass

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(A) Electromagnets are magnets that can be turned on and off by controlling the electric current.For an electromagnet,the core material undergoes cycl

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

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(A) Electromagnets are magnets that can be turned on and off by controlling the electric current.For an electromagnet,the core material undergoes cyclic magnetization and demagnetization. To minimize energy loss during these cycles,the material should have a small hysteresis loop area,which implies low coercivity and low retentivity.Soft iron is characterized by high magnetic permeability,high susceptibility,and low coercivity. Because of its low coercivity,it can be easily magnetized and demagnetized,making it the ideal material for electromagnets.Therefore,both the Assertion and the Reason are correct,and the Reason is the correct explanation for the Assertion.

Assertion: Electromagnets are made of soft iron.
Reason: Coercivity of soft iron is small.

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Assertion: Electromagnets are made of soft iron.Reason: Coercivity of soft iron is small.