JEE Main 2013 — Electrostatics Question with Solution
JEE Main 2013 (25 Apr Online)
Question
The surface charge density of a thin charged disc of radius is . The value of the electric field at the centre of the disc is . With respect to the field at the centre, the electric field along the axis at a distance from the centre of the disc:
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Show full solutionCorrect option: A
Correct answer
Areduces by
Step-by-step explanation
Electric field intensity at the centre of the disc.
Electric field along the axis at any distance from the centre of the disc
From question, (radius of disc)
reduction in the value of electric field
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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.