Official PYQ · 2006Set 1 · Q12BJT and MOSFET AmplifiersMCQ1 mark

GATE EC 2006 Set 1 Q12 — BJT and MOSFET Amplifiers

An $n$ -channel depletion MOSFET has following two points on its $\mathrm{I}_\text{D}-\mathrm{V}_{\text{GS}}$ curve

$\text{V}_{\text{Gs}}=0$ at $\text{I}_\text{D}=12 \mathrm{~mA}$ and
$\mathrm{V}_{\mathrm{GS}}=-6$ Volts at $\mathrm{I}_{\mathrm{D}}=0$

Which of the following $\text{Q}$ -points will give the highest trans-conductance gain for small signals?

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Answer: D

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Published 10 Oct 2026

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