Question

define electromagnet and how it is made?

Answer 1

Answer:

electro magnet is defined as a temporary magnet which can be easily demagenetised.

strength can be varied

polarity can be reversed

genarly strong magnet...

Explanation:

it is made by passing electricity to a piece of wire.

then it creates a magnetic field around the wire.

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Answer 2

Answer:

A electromagnet is a temporary magnet which consists of a long coil of insulated copper wire wrapped around a soft iron core and it is magnetized only when electric current is passed through it.

A electromagnet is made by taking is soft iron core and wrapping it with an insulated copper wire and passing electric current through it. The strength of a electromagnet depends on these factors:

1. The number of turns in the coil

2. The current flowing in the coil

3. The length of air gap between its poles