A common emitter amplifier circuit, built using an npn transistor, is shown in the figure. Its dc current gain is 250, RC = 1 k &! and VCC = 10V. What is the minimum base current for VCE to reach saturation ?

Question:
A common emitter amplifier circuit, built using an npn transistor, is shown in the figure. Its de current gain is 250 , $\mathrm{R}_{\mathrm{C}}=1 \mathrm{k} \& !$ and $\mathrm{V}_{\mathrm{CC}}=10 \mathrm{~V}$. What is the minimum base current for $V_{C E}$ to reach saturation?

$40 \mu \mathrm{A}$
$100 \mu \mathrm{A}$
$7 \mu \mathrm{A}$
$10 \mu \mathrm{A}$

Correct Option: 1

JEE Main Previous Year 1 Question of JEE Main from Physics Semiconductor Electronics : Materials, Devices and Simple Circuits chapter.

JEE Main Previous Year 8 Apr. 2019 II

Solution:

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