JEE Main 2024 · PhysicsNumerical answerNumerical valueMediumMulti-step

JEE Main 5 April 2024, Shift 1, Physics Q56

Question 56 of 90 in this shift, Physics question 26 of 30, Section B.

A 2A current carrying straight metal wire of resistance

1\ \Omega

, resistivity

2\times10^{-6}\ \Omega\mathrm{m}

, area of cross-section

10\ \mathrm{mm^2}

and mass 500 g is suspended horizontally in mid air by applying a uniform magnetic field

\vec{B}

. The magnitude of B is ________

\times10^{-1}

T (given,

g=10\ \mathrm{m/s^2}

Official answer

NTA final key.

Chapter: Moving Charges and Magnetism
Topic: Lorentz Force
Idea tested: Balancing Gravity with Magnetic Force

Same topic in other shifts

All Lorentz Force questions

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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 108 of the 174 JEE Main shifts held from 2017 to 2026.