Q1302
The method of magnetisation is:
A.
Hammering a magnet
AnswerB.
Heating a magnet
C.
Passing direct current through it
D.
Passing alternating current through it
Answer: Option A
Solution
Answer: Option A
Solution:
Hammering a rod will either allow it to become slightly magnetic if laid along a magnetic field (i.e.North - South) or demagnetise it if laid across the field lines (i.e. East-West). A current passing through a coil will produce a magnetic field.