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A two-stage amplifier has an input power of 30μW and an output power of 1.5mW. One stage has a gain of 3. What is the gain of the second stage?

A two-stage amplifier has an input power of 30μW and an output power of 1.5mW. One stage has a gain of 3. What is the gain of the second stage? Correct Answer 16.6

Total gain = 1.5×10-3/30×10-6 = 50 = stage 1 gain x stage 2 gain Stage 2 gain = 50 / 3 = 16.6.

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