JEE Main Physics · Semiconductor Electronics: Materials, Devices and Simple Circuits

Transistors in JEE Main

Name: Transistors: JEE Main previous year questions
Creator: Lumi

Transistors (Physics, Semiconductor Electronics: Materials, Devices and Simple Circuits) came 6 times in 6 of the 42 JEE Main shifts Lumi analysed, across 4 distinct ideas. 0 of them came in 2024–26; it was last asked in 2023.

Questions: 6; in 6 shifts
Ideas asked: 4; 1 asked more than once
Numerical answer: 4; 67% of its questions
Pattern: Asked most years; rarely asked since 2024

Questions each year

In the shifts Lumi analysed for each year.

Difficulty and format

Easy 4Medium 2Hard 0

Format

Numerical value4 Q
Single correct2 Q

Ideas inside the topic

4 ideas

CE Amplifier Voltage Gain3 Q
AC vs DC Current Gain1 Q
CE Amplifier Phase Reversal1 Q
CE Power Gain Formula1 Q

Where it sits

Part of Semiconductor Electronics: Materials, Devices and Simple Circuits, which had 46 questions in all. Transistors accounts for 13% of them. In Lumi's JEE taxonomy it belongs to Modern Physics.

Every question

All 6 Transistors questions

Newest first, each with its options and official answer.

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
24 Jun 2022, Shift 1 · Q53A 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…EasyNumerical value
29 Jun 2022, Shift 1 · Q58A transistor is used in an amplifier circuit in common emitter mode. If the base current changes by 100 $\mu$ A, it brings a change of 10…EasyNumerical value
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
6 Sep 2020, Shift 2 · Q25The output characteristics of a transistor is shown in the figure. When $V_{CE}$ is 10 V and $I_C = 4.0$ mA, then value of $\beta_{ac}$ is…MediumNumerical valueHas a figure
2 Apr 2017 (offline) · Q27In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be :EasySingle correct