JEE Main 2021PhysicsSemiconductorsMediumNumerical

JEE Main 2021Semiconductors Question with Solution

JEE Main 2021 (18 Mar Shift 2)

Question

The typical output characteristics curve for a transistor working in the common-emitter configuration is shown in the figure.

The estimated current gain from the figure is

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Show full solutionCorrect answer: 200
Correct answer
200

Step-by-step explanation

β=ΔICΔIB=2×10-310×10-6β=15×103β=2×102

β=200

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About this question

This is a previous-year question from JEE Main 2021, covering the Semiconductors chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.