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Byju's Answer
Standard VII
Physics
Which of the ...
Question

Which of the following is the input and output of an electric bell respectively?

A
Mechanical energy
Sound energy
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B
Electrical energy
Mechanical energy
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C
Electrical energy
Sound energy
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D
Electrical energy
Magnetic energy
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Solution

The correct option is C Electrical energy
Sound energy
In an electric bell when we switch on the circuit, a moving iron hits the gong and produces sound. So, electrical energy is converted into sound energy.
i.e. the input of an electric bell is electricity and the output is sound.

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