Question: A microphone produces a voltage of 0.001 V and has an internal resistance of 568 ohm. An amplifier has an input resistance of 1375 ohm,

A microphone produces a voltage of 0.001 V and has an internal resistance of 568 ohm. An amplifier has an input resistance of 1375 ohm, an output resitance of 96 ohm, and a gain of 36 dB. The amplifier is connected between the microphone and an 7 ohm speaker. What is the power consumed by the speaker in units of mW?r

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