JEE Main 2022 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 24 June 2022, Shift 1, Physics Q53

Question 53 of 90 in this shift, Physics question 23 of 30, Section B.

A transistor is used in common-emitter mode in an amplifier circuit. When a signal of 10 mV is added to the base-emitter voltage, the base current changes by

10\ \mu

A and the collector current changes by 1.5 mA. The load resistance is

5\ \mathrm{k\Omega}

. The voltage gain of the transistor will be ______.

Official answer

750

NTA final key (2022 Session 1).

Chapter: Semiconductor Electronics: Materials, Devices and Simple Circuits
Topic: Transistors
Idea tested: CE Amplifier Voltage Gain

Same idea in other shifts

Asked 7× in all

8 Apr 2023, Shift 2 · Q43For a given transistor amplifier circuit in CE configuration $V_{CC} = 1$ V, $R_C = 1$ k $\Omega$ , $R_b = 100$ k $\Omega$ and $\beta = 100$ .…EasySingle correctHas a figure
13 Apr 2023, Shift 1 · Q59From the given transfer characteristic of a transistor in CE configuration, the value of power gain of this configuration is $10^x$ , for…MediumNumerical valueHas a figure
26 Jul 2022, Shift 2 · Q56The typical transfer characteristics of a transistor in CE configuration is shown in figure. A load resistor of 2 $k\Omega$ is connected…MediumNumerical valueHas a figure
28 Jul 2022, Shift 2 · Q19An n.p.n transistor with current gain $\beta$ = 100 in common emitter configuration is shown in figure. The output voltage of the…MediumSingle correctHas a figure
25 Jun 2022, Shift 2 · Q60In an experiment of $CE$ configuration of n-p-n transistor, the transfer characteristics are observed as given in figure. If the input…MediumNumerical valueHas a figure
18 Mar 2021, Shift 1 · Q21An npn transistor operates as a common emitter amplifier with a power gain of $10^6$ . The input circuit resistance is 100 $\Omega$ and the…MediumNumerical value

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.