Physics · 2019
JEE Main · 8 April 2019, Shift 2 · Q27
A common emitter amplifier circuit, built using an npn transistor, is shown in the figure. Its dc current gain is 250, R_C =1 k Ω and V_CC =10 V.…
A common emitter amplifier circuit, built using an npn transistor, is shown in the figure. Its dc current gain is $\displaystyle 250, \mathrm{R}_{\mathrm{C}}=1 \mathrm{k} \Omega$ and $\displaystyle \mathrm{V}_{\mathrm{CC}}=10 \mathrm{~V}$. What is the minimum base current for $\displaystyle \mathrm{V}_{\mathrm{CE}}$ to reach saturation ?
Official answer
(2)
$\displaystyle 40 \mu \mathrm{~A}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.