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Law of Conservation of Energy

Microphone is...

Question

Microphone is used to convert

A

Electrical energy into sound energy

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B

Sound energy into electrical energy

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C

Sound energy into mechanical energy

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D

Sound energy into chemical energy

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Solution

The correct option is A Sound energy into electrical energy
When we speak on a microphone , our voice (sound energy) is converted in electrical signals (electrical energy) ,which can be transmitted through a wire to a distance .

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Q. A microphone converts :

(a) electrical energy into sound energy in ordinary telephone
(b) microwave energy into sound energy in a mobile phone
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(d) sound energy into electrical energy in public address system

Q. Name the devices or machines which convert:
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(ii) Chemical energy into mechanical energy.
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(v) light energy into heat energy.

Q. There are a number of devices in common use that change energy from one form to another. Name some devices that change

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