Which of the following methods CANNOT be used to produce ...
Which of the following methods CANNOT be used to produce a steel magnet? The
passing of an electric current through a solenoid
repeated stroking of the specimen with a magnet
repeated stroking of the specimen in opposite directions with magnets
heating of the specimen
hammering of the specimen in the earth's magnetic field
Correct answer is D
No explanation has been provided for this answer.
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