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I It retains its magnetic much longer than steel.II It is more easily magnetized...


Question

I It retains its magnetic much longer than steel.

II It is more easily magnetized than steel

III It is more easily demagnetized than steel

IV It produces a stronger magnet than steel

Which combination of the above makes iron preferable to steel in the making of electromagnets?

Options

A) I and II only

B) II and III only

C) I, III, and IV only

D) II, III and IV only


The correct answer is B.

Explanation:

Iron (spft iron) is usually preferred to steel in the making of electromagnets because it is more easily magnetized and equally more easily demagnetized than [II and III]

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  • Iron (spft iron) is usually preferred to steel in the making of electromagnets because it is more easily magnetized and equally more easily demagnetized than [II and III]

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