Statement I: Electromagnets are made of soft iron.
Statement II: Coercivity of soft iron is small.

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Statement I is correct and statement II is incorrect.

Statement I is incorrect and statement II is correct.

Both statements are correct.

Both statements are incorrect.

answer is A.

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Detailed Solution

Electromagnets are magnets, which can be tumed on and off by switching the current on and off As the material in electromagnets is subjected to cyclic change (magnification and demagnetisation), the hysteresis loss of the material must be small. The material should attain high value of I and B with low value of magnetising fleld intensity H. As soft iron has small coercivity, so it is a best choice for this purpose.

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