JEE Main 2026 — Electrostatics Question with Solution
JEE Main 2026 (23 January Shift 2)
Question
Two charges and are placed at and respectively in an external field , where . Considering the potential at infinity is 0, the electrostatic energy of the configuration is J.
Choose an option
Show full solutionCorrect option: A
Correct answer
A49.3
Step-by-step explanation
The total electrostatic energy of a system of two charges and in an external field is given by .
Given external electric field , the potential is found by .
Parameters given:
at .
at .
Distance between charges .
.
Calculating individual terms:
.
.
Interaction energy .
Total energy .
Given external electric field , the potential is found by .
Parameters given:
at .
at .
Distance between charges .
.
Calculating individual terms:
.
.
Interaction energy .
Total energy .
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This is a previous-year question from JEE Main 2026, 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.