JEE Main 2024 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 9 April 2024, Shift 2, Physics Q54

Question 54 of 90 in this shift, Physics question 24 of 30, Section B.

A straight magnetic strip has a magnetic moment of

44\ \mathrm{Am^2}

. If the strip is bent in a semicircular shape, its magnetic moment will be ________

\mathrm{Am^2}

. (given

\pi=\frac{22}{7}

)

Official answer

NTA final key.

Chapter: Magnetism and Matter
Topic: Magnetic Dipole Moment
Idea tested: Bending a Bar Magnet into a Semicircle

Same topic in other shifts

All Magnetic Dipole Moment questions

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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
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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

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.