JEE Main 2012 — Electrostatics Question with Solution
JEE Main 2012 (19 May Online)
Question
A charge of total amount is distributed over two concentric hollow spheres of radii and ) such that the surface charge densities on the two spheres are equal. The electric potential at the common centre is
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Let and be charge on two spheres of radius ' ' and ' ' respectively As, and [Surface charge density are equal]
So, and
Now, potential,
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This is a previous-year question from JEE Main 2012, 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.