Steel is more suitable for permanent magnet than iron because the former
A
is easily demagnetized by shaing vigorously
B
is an alloy of many metals
C
is easily magnetized by alternating current through one cycle
D
retains magnetism more than iron
Verified Correct Answer: D.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #596)