GEOLOGY

EARTH SCIENCE

MAGNETISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Moving a permanent magnet through a coil of wire will
A
demagnetize the magnet
B
the wire will become an electromagnet
C
the magnet will become electrified
D
a current will be generated in the wire
Explanation: 

Detailed explanation-1: -Moving a magnet around a coil of wire, or moving a coil of wire around a magnet, pushes the electrons in the wire and creates an electrical current.

Detailed explanation-2: -A coil of wire becomes an electromagnet when current passes through it. The electromagnet interacts with a permanent magnet, causing the coil to spin. Voilà! You’ve created an electric motor.

Detailed explanation-3: -When we pass electricity through the coil, it produces magnetic field around the soft iron piece and this soft iron piece becomes electromagnet and its magnetic strength can be changed by changing the amount of current flowing the coil. Electromagnets have various uses in the industry.

There is 1 question to complete.