JEE Main · Physics · Moving Charges and Magnetism
Field of a Hairpin Loop
JEE Main asked Field of a Hairpin Loop once in the 108 shifts Lumi analysed, on 17 Mar 2021, Shift 2. It belongs to Biot-Savart Law, in Moving Charges and Magnetism (Physics).
Updated 2026-10-24
- Times asked
- 1
- in 1 shift
- Years
- 1 of 8
- First asked
- 2021
- the only year
- Pattern
- Gone quiet
- asked once so far
Questions on this idea a shift, by year
2017–2026. Asked in 2021. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.
Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 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.
How JEE Main framed it
Diagram based is the usual form. Skill tested: application.
- Field at centre of hairpin with semicircle
Difficulty
The question was multiple choice.
Every question
The question
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
Shift: 17 Mar 2021, Shift 2.
Same topic
Other ideas in Biot-Savart Law
Biot-Savart Law has 11 ideas JEE Main has asked; 9 of them came up in more than one question.
- Field at center of circular arc8× · 2025
- Superposition of magnetic fields5× · 2026
- Field at Center of Regular Polygon5× · 2025
- Ratio of Axial to Central Magnetic Field5× · 2025
- Field of an N-Turn Flat Coil4× · 2026
- Infinite and semi-infinite wires4× · 2024
- Dimensions of Permeability3× · 2025
- Field on axis of circular loop2× · 2023
- Field at Center of Spiral Coil2× · 2022
- Vector form of Biot-Savart Lawonce · 2024