Electric door bell employs

Permanent Magnet

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Electromagnet

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Thermistor

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Electric bulb

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Solution

The correct option is B Electromagnet
An electric bell is a mechanical or electronic bell that functions by means of an electromagnet. When an electric current is applied, it produces a repetitive buzzing, clanging or ringing sound.

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Similar questions

For the following devices:

I: Fuse

II: Electric Bulb

III: Electric Bell

Select the correct option.

To operate a filament bulb or an electric fan, we can use a bell switch.

An electric bell contains an electromagnet which helps the bell to ring.

Use of armature in an electric bell

Also,

Describe how an electric bell works.

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