JEE Main 2010 — Electrostatics Question with Solution
From: AIEEE 2010
Question
A thin semi-circular ring of radius has a positive charges distributed uniformly over it. The net field at the center is
This question includes a diagram. The text above accompanies the figure.
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Let us consider a differential element charge on this element.
(as )
Electric field at due to is
The component will be counter balanced by another element on left portion.
Hence resultant field at is the resultant of the component only.
The directions of is towards negative -axis.
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This is a previous-year question from JEE Main 2010, 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.