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Saturday, 31 October

JEE Main · Physics · Electromagnetic Induction

Faraday's Law Magnitude

JEE Main asked Faraday's Law Magnitude 15 times in 15 of the 108 shifts Lumi analysed, in 2020, 2021, 2022, 2023, 2024 and 2026. It belongs to Faraday's Law, in Electromagnetic Induction (Physics). The longest wait between two years asking it was 2 years. In 2020, 2021, 2022, 2023, 2024 and 2026 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
15
in 15 shifts
Years
6 of 8
First asked
2020
last in 2026
Pattern
Asked most years
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2021, 2022, 2023, 2024 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.150.30’170.17’200.10’210.14’220.14’230.09’240’250.22’26

Raw count: 2017: 0 in 1 shift · 2020: 2 in 12 shifts · 2021: 3 in 24 shifts · 2022: 4 in 24 shifts · 2023: 2 in 12 shifts · 2024: 2 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
  • 20242 of 18
  • 20232 of 12
  • 20224 of 24
  • 20213 of 24
  • 20202 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Numerical value is the usual form. Skill tested: calculation.

  • Peak emf in loop in sinusoidal field
  • Induced current from time-varying field

Difficulty

Easy 6Medium 8Hard 1

10 of the 15 questions had a numerical answer.

Every question

All 15 questions

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

  1. 6 Apr 2026, Shift 2 · Q39A square loop of side 2 cm is placed in a time varying magnetic field with magnitude as B=0.4sin⁡(300t)B=0.4\sin(300t) Tesla. The normal to the plane…MediumSingle correct
  2. 5 Apr 2026, Shift 2 · Q50A circular loop of radius 20 cm and resistance 2 Ω\Omega is placed in a time varying magnetic field B⃗=(2t2+2t+3) T\vec{B}=(2t^2+2t+3)\ \mathrm{T}. At…EasyNumerical value
  3. 31 Jan 2024, Shift 2 · Q58The magnetic flux ϕ\phi (in weber) linked with a closed circuit of resistance 8 Ω8\ \Omega varies with time (in seconds) as…EasyNumerical value
  4. 29 Jan 2024, Shift 1 · Q58A square loop of side 10 cm and resistance 0.7 Ω0.7\,\Omega is placed vertically in east-west plane. A uniform magnetic field of 0.20 T0.20\ T is…EasyNumerical value
  5. 12 Apr 2023, Shift 1 · Q58A conducting circular loop is placed in a uniform magnetic field of 0.4 T with its plane perpendicular to the field. Somehow, the radius…MediumNumerical value
  6. 11 Apr 2023, Shift 1 · Q53The magnetic field B crossing normally a square metallic plate of area 4 m2^2 is changing with time as shown in figure. The magnitude of…EasyNumerical valueHas a figure
  7. 28 Jun 2022, Shift 2 · Q44A coil is placed in a time varying magnetic field. If the number of turns in the coil were to be halved and the radius of wire doubled,…HardSingle correct
  8. 27 Jul 2022, Shift 2 · Q54A conducting circular loop is placed in X - Y plane in presence of magnetic field B⃗=(3t3j^+3t2k^)\vec{B}=\left(3t^3\hat{j}+3t^2\hat{k}\right) in SI…MediumNumerical value
  9. 26 Jul 2022, Shift 2 · Q58In a coil of resistance 8 Ω\Omega,the magnetic flux due to an external magnetic field varies with time as…MediumNumerical value
  10. 25 Jul 2022, Shift 2 · Q60Magnetic flux (in weber) in a closed circuit of resistance 20 Ω\Omega varies with time t(s) as ϕ\phi = 8t2^{2} - 9t + 5. The magnitude…EasyNumerical value
  11. 25 Jul 2021, Shift 1 · Q26A circular conducting coil of radius 1 m is being heated by the change of magnetic field B⃗\vec{B} passing perpendicular to the plane in…MediumNumerical value
  12. 4 Aug 2021, Shift 2 · Q6A given mass 1g of copper is drawn into a wire and made into a circular loop. The circular loop is placed perpendicularly in a magnetic…MediumSingle correct
  13. 3 Aug 2021, Shift 2 · Q22The magnetic flux linked with a coil at any instant 't' is given by ϕ=5t3−100t+300\phi = 5t^3 - 100t + 300 (SI unit). The emf induced in the coil at t…EasyNumerical value
  14. 3 Sep 2020, Shift 2 · Q14A uniform magnetic field B exists in a direction perpendicular to the plane of a square loop made of a metal wire. The wire has a diameter…MediumSingle correct
  15. 8 Jan 2020, Shift 1 · Q14At time t = 0 magnetic field of 1000 Gauss is passing perpendicularly through the area defined by the closed loop shown in the figure. If…MediumSingle correctHas a figure

Shifts: 8 Jan 2020, Shift 1, 3 Sep 2020, Shift 2, 25 Jul 2021, Shift 1, 3 Aug 2021, Shift 2, 4 Aug 2021, Shift 2, 28 Jun 2022, Shift 2, 25 Jul 2022, Shift 2, 26 Jul 2022, Shift 2, 27 Jul 2022, Shift 2, 11 Apr 2023, Shift 1, 12 Apr 2023, Shift 1, 29 Jan 2024, Shift 1, 31 Jan 2024, Shift 2, 5 Apr 2026, Shift 2, 6 Apr 2026, 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