EC > GATE 2025 > Amplifiers
A simplified small-signal equivalent circuit of a BJT-based amplifier is given below.
The small-signal voltage gain Vo/VS (in V/V) is
A
(-βRL)/(RS+rπ)
B
(+βRL)/(RC)
C
(-βRL)/(RS)
D
(+βRL)/(RS+rπ)

Correct : a

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BJT amplifier small signal model small signal voltage gain GATE EC 2025 transistor amplifier gain EC gate 2025 small signal amplifier gain BJT amplifier transistor amplifier gain calculation

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