Question
Which device converts sound waves to electrical
signals?Solution
Microphone: Converts a sound wave into an electrical signal. Loudspeaker: Converts an electrical signal into sound waves. Headphone: Converts electrical energy into mechanical energy to produce sound. Amplifier: • It is used to change the amplitude of a signal. • The purpose of an amplifier is to produce an output signal larger than that of the input signal. • It is used to convert Direct current into Alternate Current.
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Which is the one that does not belong to the group?
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