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Saturday, 31 October

JEE Main · Physics · Magnetism and Matter

Small Oscillations of a Magnetic Dipole

JEE Main asked Small Oscillations of a Magnetic Dipole 2 times in 2 of the 108 shifts Lumi analysed, in 2017 and 2020. It belongs to Magnetic Dipole Moment, in Magnetism and Matter (Physics). The longest wait between two years asking it was 3 years, across 2018 and 2019, which Lumi has no shifts for.

Updated 2026-10-24

Times asked
2
in 2 shifts
Years
2 of 8
First asked
2017
last in 2020
Pattern
Gone quiet
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2017 and 2020. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.510.83’170.08’200’210’220’230’240’250’26

Raw count: 2017: 1 in 1 shift · 2020: 1 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20260 of 9
  • 20250 of 8
  • 20240 of 18
  • 20230 of 12
  • 20220 of 24
  • 20210 of 24
  • 20201 of 12
  • 20171 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Single correct is the usual form. Skill tested: calculation.

  • Oscillation time of magnetic needle
  • Time period of current loop oscillating in field

Difficulty

Easy 1Medium 1Hard 0

Every question was multiple choice.

Every question

All 2 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 9 Jan 2020, Shift 2 · Q13A small circular loop of conducting wire has radius aa and carries current II. It is placed in a uniform magnetic field BB…MediumSingle correct
  2. 2 Apr 2017 (offline) · Q18A magnetic needle of magnetic moment 6.7×10−2 Am26.7\times10^{-2}\ \mathrm{Am^2} and moment of inertia 7.5×10−6 kg m27.5\times10^{-6}\ \mathrm{kg\,m^2} is…EasySingle correct

Shifts: 2 Apr 2017 (offline), 9 Jan 2020, Shift 2.

Same topic

Other ideas in Magnetic Dipole Moment

Magnetic Dipole Moment has 20 ideas JEE Main has asked; 5 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas