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General Knowledge · Q1302

Practice

Competitive Exams · General Knowledge · question 1302

Q1302

The method of magnetisation is:

A.
Hammering a magnet
Answer
B.
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.