Multistage Amplifiers MCQs

Practice Multistage Amplifiers MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1

Analog ElectronicsMultistage Amplifiers

In a multistage RC-coupled amplifier, the coupling capacitor between stages primarily?

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Correct Answer: A. Passes AC while blocking the DC bias of one stage from disturbing the next

Explanation: RC coupling transfers the signal while isolating the DC operating points of adjacent amplifier stages.

Reference: Standard analog electronics: RC coupling

Question 2

Analog ElectronicsMultistage Amplifiers

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Correct Answer: C. 300

Explanation: Cascaded voltage gains multiply: 20×15=300.

Reference: Standard analog electronics: cascaded gain

Question 3

Analog ElectronicsMultistage Amplifiers

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Correct Answer: C. 50 dB

Explanation: For cascaded stages, gains expressed in decibels add, so total gain is 20+30=50 dB.

Reference: Standard analog electronics: cascaded dB gain