Which device converts sound waves to electrical signals?
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A.
Loud speaker
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B.
Headphone
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C.
Microphone
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D.
Amplifier
Correct Answer:
C. Microphone
Explanation:
The device that converts sound waves into electrical signals is the microphone. As a type of transducer, it functions by capturing the mechanical vibrations of sound through a diaphragm. These vibrations are then transformed into an equivalent electrical current using various methods, such as electromagnetic induction or changes in capacitance. In contrast, a loudspeaker performs the opposite function by converting electrical signals back into sound, while an amplifier simply increases the strength of an existing electrical signal.
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