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What is the approximate value of the voltage gain of a simplified CC amplifier configuration?

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What is the approximate value of the voltage gain of a simplified CC amplifier configuration?

(a) 1

(b) β

(c) ∞

(d) 0

This question was addressed to me in an online interview.

My enquiry is from Simplified Calculations for the CC Configuration topic in chapter Low Frequency Transistor Amplifier Circuit of Electronic Devices & Circuits

1 Answer

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The correct choice is (a) 1

The explanation: The voltage gain of a simplified CC amplifier configuration is approximately equal to unity (AV ≈ 1) and its current gain, Ai is approximately equal to β(Ai ≈ β) which depends on the value of each individual transistors.

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