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Magnetic Induction

In an electri...

Question

In an electric bell, striker is attracted by a/an__________.

A

bar magnet

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B

cylindrical magnet

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C

electromagnet

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D

horseshoe magnet

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Solution

The correct option is C
electromagnet

An electromagnet is a type of magnet in which the magnetic field is generated with the help of an electric current. Magnetic materials can behave like electromagnets if a current is passed through a coil around them. It is a temporary magnet, i.e. it loses its magnetic properties as soon as the current flow is stopped. Electric bell has an electromagnet in it which attracts the striker.

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In an electric bell, striker is attracted by a/an__________.

Q. A magnet always has two poles. Therefore it is called a/an
(a) dipole
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(c) horseshoe magnet
(d) bar magnet

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