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Saturday, 31 October

JEE Main · Physics · Moving Charges and Magnetism

Magnetic Force Vector Calculation

JEE Main asked Magnetic Force Vector Calculation 7 times in 7 of the 108 shifts Lumi analysed, in 2020, 2021, 2022 and 2026. It belongs to Lorentz Force, in Moving Charges and Magnetism (Physics). The longest wait between two years asking it was 4 years. In 2020, 2022 and 2026 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
7
in 7 shifts
Years
4 of 8
First asked
2020
last in 2026
Pattern
Frequent
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2021, 2022 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.150.30’170.17’200.03’210.07’220’230’240’250.22’26

Raw count: 2017: 0 in 1 shift · 2020: 2 in 12 shifts · 2021: 1 in 24 shifts · 2022: 2 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 in 8 shifts · 2026: 2 in 9 shifts.

Shift by shift

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

  • 20262 of 9
  • 20250 of 8
  • 20240 of 18
  • 20230 of 12
  • 20222 of 24
  • 20211 of 24
  • 20202 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

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

  • Magnetic force from vector cross product
  • Unknown component from perpendicular force

Difficulty

Easy 4Medium 3Hard 0

2 of the 7 questions had a numerical answer.

Every question

All 7 questions

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

  1. 5 Apr 2026, Shift 1 · Q49The charged particle moving in a uniform magnetic field of (3i^+2j^) T(3\hat{i} + 2\hat{j})\,\mathrm{T} has an acceleration…MediumNumerical value
  2. 2 Apr 2026, Shift 1 · Q481 μ1\ \muC charge moving with velocity v⃗=(i^−2j^+3k^)\vec v=\left(\hat i-2\hat j+3\hat k\right) m/s in the region of magnetic field…EasyNumerical value
  3. 28 Jul 2022, Shift 2 · Q12A triangular shaped wire carrying 10 A current is placed in a uniform magnetic field of 0.5 T, as shown in figure. The magnetic force on…EasySingle correctHas a figure
  4. 26 Jul 2022, Shift 1 · Q38A charge particle is moving in a uniform magnetic field (2i^+3j^)\left(2\hat{i} + 3\hat{j}\right) T. If it has an acceleration of…EasySingle correct
  5. 25 Feb 2021, Shift 1 · Q15A proton, a deuteron and an α\alpha particle are moving with same momentum in a uniform magnetic field. The ratio of magnetic forces…MediumSingle correct
  6. 3 Sep 2020, Shift 1 · Q2A charged particle carrying charge 1 μ\muC is moving with velocity (2i^+3j^+4k^)(2\hat{i} + 3\hat{j} + 4\hat{k}) ms−1^{-1}. If an external magnetic…EasySingle correct
  7. 8 Jan 2020, Shift 1 · Q12Proton with kinetic energy of 1 MeV moves from south to north. It gets an acceleration of 101210^{12} m/s2^2 by an applied magnetic field…MediumSingle correct

Shifts: 8 Jan 2020, Shift 1, 3 Sep 2020, Shift 1, 25 Feb 2021, Shift 1, 26 Jul 2022, Shift 1, 28 Jul 2022, Shift 2, 2 Apr 2026, Shift 1, 5 Apr 2026, Shift 1.

Same topic

Other ideas in Lorentz Force

Lorentz Force has 18 ideas JEE Main has asked; 9 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas