JEE Main 2022 — Electrostatics Question with Solution
From: JEE Main 2022 (Online) 25th June Evening Shift
Question
27 identical drops are charged at 22V each. They combine to form a bigger drop. The potential of the bigger drop will be _____________ V.
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Show full solutionCorrect answer: 198
Step-by-step explanation
Let the charge on one drop is q and its radius is r.
So for one drop
For 27 drops merged new charge will be Q = 27 q and new radius is R = 3r
So new potential is
V
= 198 V
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This is a previous-year question from JEE Main 2022, covering the Electrostatics 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.