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We have an amplifier that draws 2A from a 15-V dc power supply. The input signal...

We have an amplifier that draws 2A from a 15-V dc power supply. The input signal current is 1mA rms, and the input resistance is 2 k ohm. The amplifier delivers 12V rms to an 8 ohm load. Determine the power dissipated in the amplifier and the efficiency of the amplifier.

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