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 ...

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?

Answer Details

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]