JEE Main 2004PhysicsElectrostaticsElectric Potential Energy And Electric PotentialmediumMCQ

JEE Main 2004 — Electrostatics Question with Solution

From: AIEEE 2004

Question

Two spherical conductors and having equal radii and carrying equal charges on them repel each other with a force when kept apart at some distance. A third spherical conductor having same radius as that but uncharged is brought in contact with then brought in correct with and finally removed away from both. The new force of repulsion between and is

Choose an option

Show full solutionCorrect option: D
Correct answer
D

Step-by-step explanation



is distance between the spheres. After first operation charge on is halved i.e

and charge on third sphere becomes Now it is touched to , charge then equally

distributes them selves to make potential same, hence charge on becomes









or,

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About this question

This is a previous-year question from JEE Main 2004, 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.