JEE Main 2022 — Electrostatics Question with Solution
From: JEE Main 2022 (Online) 26th June Evening Shift
Question
Sixty four conducting drops each of radius 0.02 m and each carrying a charge of 5 C are combined to form a bigger drop. The ratio of surface density of bigger drop to the smaller drop will be :
Choose an option
Show full solutionCorrect option: B
Correct answer
B4 : 1
Step-by-step explanation
Surface charge density of a spherical conductor is given by,
When all smaller drops combine, the radius of the bigger drop is given by
When all smaller drops combine, the radius of the bigger drop is given by
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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.