JEE Main 2022PhysicsCapacitanceEasyMCQ

JEE Main 2022 — Capacitance Question with Solution

JEE Main 2022 (24 Jun Shift 2)

Question

If the charge on a capacitor is increased by 2C, the energy stored in it increases by 44%. The original charge on the capacitor is (in C)

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Show full solutionCorrect option: A
Correct answer
A10

Step-by-step explanation

Energy stored in a capacitor is given by E=Q22C.

Let initial charge be Q0.

Then, 1.44Q022C=Q0+222C

⇒1.2Q0=Q0+2

Q0=20.2=10 C

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About this question

This is a previous-year question from JEE Main 2022, covering the Capacitance 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.