JEE Main 2013PhysicsElectrostaticsHardMCQ

JEE Main 2013 — Electrostatics Question with Solution

JEE Main 2013 (07 Apr)

Question

A charge Q is uniformly distributed over a long rod AB of length L as shown in the figure. The electric potential at the point O lying at a distance L from the end A is :


Choose an option

Show full solutionCorrect option: B
Correct answer
B Q  ln  2 4 π ∈ 0 L

Step-by-step explanation



V = ∫ L 2 L kdq x

= ∫ L 2 L 1 4 π ε 0 Q L dx x

= Q 4 π ε 0 L ℓ n 2

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About this question

This is a previous-year question from JEE Main 2013, 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.