What is the gain of a vacuum tube having the following parameter amplification factor is 80, external plate-load resistance of 30,000 ohms and the tubes internal plate resistance is 10,000 ohms?

What is the gain of a vacuum tube having the following parameter amplification factor is 80, external plate-load resistance of 30,000 ohms and the tubes internal plate resistance is 10,000 ohms?

A. 60
B. 20
C. 30
D. 40

Show Answer

Answer: A

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