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Saturday, 31 October

JEE Main · Physics · Electromagnetic Induction

Induced Charge Flow

JEE Main asked Induced Charge Flow 3 times in 3 of the 108 shifts Lumi analysed, in 2017, 2021 and 2023. It belongs to Faraday's Law, in Electromagnetic Induction (Physics). The longest wait between two years asking it was 4 years, across 2018 and 2019, which Lumi has no shifts for.

Updated 2026-10-24

Times asked
3
in 3 shifts
Years
3 of 8
First asked
2017
last in 2023
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2017, 2021 and 2023. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.510.83’170’200.03’210’220.07’230’240’250’26

Raw count: 2017: 1 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 0 in 24 shifts · 2023: 1 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
  • 20231 of 12
  • 20220 of 24
  • 20211 of 24
  • 20200 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.

  • Induced charge in coil from changing current
  • Induced charge from flux reversal

Difficulty

Easy 1Medium 2Hard 0

1 of the 3 questions had a numerical answer.

Every question

All 3 questions

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

  1. 13 Apr 2023, Shift 2 · Q58An insulated copper wire of 100 turns is wrapped around a wooden cylindrical core of the cross-sectional area 24 cm224\ \mathrm{cm^2}. The two…EasyNumerical value
  2. 3 Aug 2021, Shift 2 · Q14Two concentric and coplanar circular coils have radius aa and b (≫a)b\ (\gg a) as shown in figure. Resistance of the inner coil is RR.…MediumSingle correctHas a figure
  3. 2 Apr 2017 (offline) · Q20In a coil of resistance 100 Ω100\ \Omega, a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude…MediumSingle correctHas a figure

Shifts: 2 Apr 2017 (offline), 3 Aug 2021, Shift 2, 13 Apr 2023, Shift 2.

Same topic

Other ideas in Faraday's Law

Faraday's Law has 13 ideas JEE Main has asked; 7 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas