JEE Main · Physics · Atoms
Magnetic Field and Dipole Moment
JEE Main asked Magnetic Field and Dipole Moment 2 times in 2 of the 108 shifts Lumi analysed, in 2021 and 2026. It belongs to Bohr's Atomic Model, in Atoms (Physics). The longest wait between two years asking it was 5 years.
Updated 2026-10-24
- Times asked
- 2
- in 2 shifts
- Years
- 2 of 8
- First asked
- 2021
- last in 2026
- Pattern
- Occasional
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2021 and 2026. 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: 1 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
Numerical value is the usual form. Skill tested: calculation.
- Ratio of quantity in two orbits
- Magnetic field at centre due to electron in orbit
Difficulty
1 of the 2 questions had a numerical answer.
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.
- 2 Apr 2026, Shift 2 · Q47Using Bohr's model, calculate the ratio of the magnetic fields generated due to the motion of the electrons in the 2nd and 4th orbits of…MediumNumerical value
- 4 Aug 2021, Shift 1 · Q5Consider a Hydrogen atom in its first excited state, what is the expression of magnetic field at the centre due to the circular motion of…HardSingle correct
Shifts: 4 Aug 2021, Shift 1, 2 Apr 2026, Shift 2.
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