Question

Differentiate between normal bar magnets and elwctromagnets.
3 points
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Answer 1

Answer:

(Bar)magnet

(1)They are permanently magnetized

(2)These are usually made of hard materials.

(3) The strength of the magnetic field line is constant. it can not be varied.

(4)The pole of permanent magnet can not change

(5)Example of permanent magnet is Bar Magnet

Electromagnet

(1) These are temporary Magnetized.

(2) They are usually made of soft materials.

(3)The strength of the magnetic fields can be varied accordingly to our need.

(4) The poles of an electromagnet can be altered

(5) Example of a temporary magnet is solenoid wounded across a nail and connected to a battery

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