GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What machine changes electrical energy into light and sound energy
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battery
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lightbulb
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alarm clock
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apple
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Explanation:
Detailed explanation-1: -The correct answer is: Alarm clock.
Detailed explanation-2: -electromechanical transducer, any type of device that either converts an electrical signal into sound waves (as in a loudspeaker) or converts a sound wave into an electrical signal (as in the microphone).
Detailed explanation-3: -Light bulbs convert electrical energy into light energy.
There is 1 question to complete.