Which of the following methods CANNOT be used to produce a steel magnet? The
A
passing of an electric current through a solenoid
B
repeated stroking of the specimen with a magnet
C
repeated stroking of the specimen in opposite directions with magnets
D
heating of the specimen
E
hammering of the specimen in the earth's magnetic field
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 #28640)