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Question

What is the principle of an electric bell?


A

Electrical energy is converted into sound energy

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B

Mechanical energy is converted into sound energy

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C

Electrical energy is converted into mechanical energy

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D

Mechanical energy is converted into electrical energy

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Solution

The correct option is A

Electrical energy is converted into sound energy


An electric bell functions by means of an electromagnet. When an electric current is applied it causes a spring-loaded arm to repeatedly contact a metallic gong which produces a repetitive buzzing or clanging sound. Therefore, an electric bell converts electrical energy into sound energy.


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