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A power amplifier when driven by a current source of 5mA rms and a source resistance of 8k, delivers 12.5 W signal power to an 8 load resistance. Find rms value of the output voltage. Show how you arrived at the answer.
a) Vo rms = 15V or 10V or 20V or 5V
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The solution involved a calculation of the rms value of the output voltage for a power amplifier.