JEE Main 2023PhysicsElectrostaticsElectric Charges And Coulombs LawmediumNumerical

JEE Main 2023Electrostatics Question with Solution

From: JEE Main 2023 (Online) 29th January Morning Shift

Question

A point charge is placed at origin. Another point charge is placed at cm. Charge of proton is . The proton is placed on axis so that the electrostatic force on the proton is zero. In this situation, the position of the proton from the origin is ___________ cm.

Enter your answer

Show full solutionCorrect answer: 24
Correct answer
24

Step-by-step explanation

JEE Main 2023 (Online) 29th January Morning Shift Physics - Electrostatics Question 91 English Explanation
Let a proton having charge on the axis at distance from and distance from .

Now, balance the force between them













The charge is at distance of from charge on -axis.

Distance from origin is

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Electrostatics chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2023, 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.