JEE Main Physics · Moving Charges and Magnetism

Magnetic Dipole Moment in JEE Main

Name: Magnetic Dipole Moment: JEE Main previous year questions
Creator: Lumi

Magnetic Dipole Moment (Physics, Moving Charges and Magnetism) came 17 times in 15 of the 42 JEE Main shifts Lumi analysed, across 13 distinct ideas. 11 of them came in 2024–26; it was last asked in 2026.

Questions: 17; in 15 shifts
Ideas asked: 13; 3 asked more than once
Numerical answer: 6; 35% of its questions
Pattern: Asked most years; last asked 2026

Questions each year

In the shifts Lumi analysed for each year.

Difficulty and format

Easy 8Medium 7Hard 2

Format

Single correct11 Q
Numerical value6 Q

Ideas inside the topic

13 ideas

Torque on a dipole in uniform field3 Q
Magnetic Field of a Short Dipole2 Q
Small Oscillations of a Magnetic Dipole2 Q
Bending a Bar Magnet into a Semicircle1 Q
Magnetic Moment in Bohr Orbits1 Q
Stable and unstable equilibrium states1 Q
Force on Dipole in 1D Field Gradient1 Q
Gyromagnetic ratio and Bohr magneton1 Q
Potential energy in a magnetic field1 Q
Moment of a rotating point charge1 Q
Magnetic Moment of a Flat Spiral Coil1 Q
Torque from a Straight Wire Field1 Q

Where it sits

Part of Moving Charges and Magnetism, which had 56 questions in all. Magnetic Dipole Moment accounts for 30% of them. In Lumi's JEE taxonomy it belongs to Magnetism.

Some questions sit in other chapters too: Atoms, Magnetism and Matter.

Every question

All 17 Magnetic Dipole Moment questions

Newest first, each with its options and official answer.

4 Apr 2026, Shift 1 · Q41An insulated wire is wound so that it forms a flat coil with $N=200$ turns. The radius of the innermost turn is $r_1=3$ cm, and of the…MediumSingle correct
4 Apr 2026, Shift 2 · Q48Two identical small bar magnets each of dipole moment $3\sqrt5$ J/T are placed at a center to center separation of 10 cm, with their axes…MediumNumerical valueHas a figure
4 Apr 2026, Shift 2 · Q49A circular coil of radius 2 cm and 125 turns carries a current of 1 A. The coil is placed in a uniform magnetic field of magnitude 0.4 T.…EasyNumerical value
8 Apr 2026, Shift 2 · Q39A current carrying circular loop of radius 2 cm with unit normal $\hat{n} = \frac{\hat{k} + \hat{i}}{\sqrt{2}}$ is placed in a magnetic…MediumSingle correct
3 Apr 2025, Shift 2 · Q36A magnetic dipole experiences a torque of $80\sqrt{3}$ N m when placed in uniform magnetic field in such a way that dipole moment makes…EasySingle correct
6 Apr 2024, Shift 2 · Q58A coil having 100 turns, area of $5\times10^{-3}\ \mathrm{m^2}$ , carrying current of 1 mA is placed in uniform magnetic field of 0.20 T…EasyNumerical value
9 Apr 2024, Shift 1 · Q57A square loop of edge length $2$ m carrying current of $2$ A is placed with its edges parallel to the $x$ - $y$ axis. A magnetic field is…HardNumerical value
9 Apr 2024, Shift 2 · Q54A straight magnetic strip has a magnetic moment of $44\ \mathrm{Am^2}$ . If the strip is bent in a semicircular shape, its magnetic moment…EasyNumerical value
29 Jan 2024, Shift 1 · Q57The magnetic potential due to a magnetic dipole at a point on its axis situated at a distance of 20 cm from its center is…EasyNumerical value
30 Jan 2024, Shift 2 · Q48An electron revolving in $n^{\mathrm{th}}$ Bohr orbit has magnetic moment $\mu_n$ . If $\mu_n \propto n^x$ , the value of $x$ isEasySingle correct
31 Jan 2024, Shift 2 · Q42A uniform magnetic field of $2\times10^{-3}$ T acts along positive $Y$ -direction. A rectangular loop of sides 20 cm and 10 cm with current…MediumSingle correct
25 Jul 2022, Shift 1 · Q49The magnetic moment of an electron (e) revolving in an orbit around nucleus with an orbital angular momentum is given by :EasySingle correct
18 Mar 2021, Shift 1 · Q12A loop of flexible wire of irregular shape carrying current is placed in an external magnetic field. Identify the effect of the field on…MediumSingle correct
9 Jan 2020, Shift 2 · Q13A small circular loop of conducting wire has radius $a$ and carries current $I$ . It is placed in a uniform magnetic field $B$ …MediumSingle correct
6 Sep 2020, Shift 2 · Q14A charged particle going around in a circle can be considered to be a current loop. A particle of mass m carrying charge q is moving in a…MediumSingle correct
6 Sep 2020, Shift 2 · Q15A square loop of side 2a and carrying current I is kept in $xz$ plane with its centre at origin. A long wire carrying the same current I…HardSingle correct
2 Apr 2017 (offline) · Q18A magnetic needle of magnetic moment $6.7\times10^{-2}\ \mathrm{Am^2}$ and moment of inertia $7.5\times10^{-6}\ \mathrm{kg\,m^2}$ is…EasySingle correct