JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 28 June 2022, Shift 2, Physics Q40

Question 40 of 90 in this shift, Physics question 10 of 30, Section A.

Two point charges A and B of magnitude

+8\times10^{-6}

C and

-8\times10^{-6}

C respectively are placed at a distance d apart. The electric field at the middle point O between the charges is

6.4\times10^4

^{-1}

. The distance ‘d’ between the point charges A and B is :

(1)2.0 m
(2)3.0 mOfficial answer
(3)1.0 m
(4)4.0 m

Official answer

Option 2

NTA final key.

Chapter: Electric Charges and Fields
Topic: Electric Field
Idea tested: Superposition Principle for Electric Fields

Same idea in other shifts

Asked 6× in all

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.