An NPN transistor | Semiconductor Electronic

JEE MAIN 2019

09-04-2019 - S1

Question

An NPN transistor is used in common emitter configuration as an amplifier with $1 \mathrm{k} \Omega$ 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 $\mu \mathrm{A}$ change in the base current of the amplifier. The input resistance and voltage gain are :

Select the correct option:

$0.33 \mathrm{k} \Omega, 1.5$

$0.33 \mathrm{k} \Omega, 300$

$0.67 \mathrm{k} \Omega, 200$

$0.67 \mathrm{k} \Omega, 300$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution