Learn

Saturday, 31 October

JEE Main 2024 · PhysicsNumerical answerNumerical valueMediumCalculation

JEE Main 5 April 2024, Shift 2, Physics Q58

Question 58 of 90 in this shift, Physics question 28 of 30, Section B.

The electric field at point p due to an electric dipole is E. The electric field at point R on equatorial line will be Ex\frac{E}{x}. The value of xx :

The figure, in words

Dipole on a horizontal axis with -q at left, centre O, +q to the right of O, and point p on the axis beyond +q at distance r (marked r, measured from O). On the vertical equatorial line through O: point Q at distance r above O and point R at distance 2r above O.

Official answer

16

NTA final key.

Chapter
Electric Charges and Fields
Topic
Electric Dipoles
Idea tested
Electric Field on Equatorial Line

Same idea in other shifts

Asked 3× in all
  1. 15 Apr 2023, Shift 1 · Q41The electric field due to a short electric dipole at a large distance (rr) from center of dipole on the equatorial plane varies with…EasySingle correct
  2. 9 Jan 2020, Shift 1 · Q11An electric dipole of moment p⃗=(−i^−3j^+2k^)×10−29\vec{p} = (-\hat{i} - 3\hat{j} + 2\hat{k}) \times 10^{-29} C.m is at the origin (0, 0, 0). The electric…MediumSingle correct

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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.