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
A. I and II only
B. II and III only
C. I, III, and IV only
D. II, III and IV only
Correct Answer:
Option B – II and III only
Explanation
Iron (soft 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]
