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    Question

    Which device converts sound waves to electrical

    signals?
    A Loud speaker Correct Answer Incorrect Answer
    B Headphone Correct Answer Incorrect Answer
    C Microphone Correct Answer Incorrect Answer
    D Amplifier Correct Answer Incorrect Answer

    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: тАв It is used to change the amplitude of a signal. тАв The purpose of an amplifier is to produce an output signal larger than that of the input signal. тАв It is used to convert Direct current into Alternate Current.

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