An NPN transistor is used in common emitterconfiguration as an amplifier with 1 k &! load resistance. Signal voltage of 10 mV is applied across the base-emitter. This produces a 3 mA change in the collector current and 15 ¾A change in the base current of the amplifier. The input resistance and voltage gain are:

Question:
An NPN transistor is used in common emitterconfiguration as an amplifier with $1 \mathrm{k} \& !$ load resistance. Signal voltag of $10 \mathrm{mV}$ is applied across the base-emitter. This produces a $3 \mathrm{~mA}$ change in the collector current and $151 / 4 \mathrm{~A}$ change in the base current of the amplifier. The input resistance and voltage gain are:

$0.33 \mathrm{k} \Omega 1.5$
$0.67 \mathrm{k} \Omega 300$
$0.67 \mathrm{k} \Omega 200$
$0.33 \mathrm{k} \Omega 300$

Correct Option: 2

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

JEE Main Previous Year 9 April 2019I

Solution:

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