Official PYQ · 1999Set 1 · Q2.6BJT and MOSFET AmplifiersMCQ1 mark

GATE EC 1999 Set 1 Q2.6 — BJT and MOSFET Amplifiers

An $\text{npn}$ transistor (with $\mathrm{C}=0.3 \; \mathrm{pF}$ ) has a unity gain cutoff frequency $f_{\mathrm{T}}$ of $400 \; \mathrm{MHz}$ at a $\text{dc}$ bias current $I_{c}=1 \mathrm{~mA}$ . The value of its $C_{\mu}$ (in $\mathrm{~pF}$ ) is approximately $\left(\mathrm{V}_{\mathrm{T}}=26 \; \mathrm{mV}\right)$

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Published 10 Oct 2026

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GATE EC 1999 Set 1 Q2.6 — BJT and MOSFET Amplifiers

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