PhysicsNEET 2023Force on a moving charge and on a current

Moving Charges and Magnetism

A wire carrying a current $I$ along the positive $x$ -axis has length $L$ . It is kept in a magnetic field $B = (2 \hat{i} + 3 \hat{j} - 4 \hat{k})$ T. The magnitude of the magnetic force acting on the wire is:

A. $3 I L$
B. $5 I L$
C. $5 I L$ ✓
D. $3 I L$

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

More from this chapter in past papers

An electron (mass 9 10^{-31} kg and charge 1.6 10^{-19} C) moving with speed c/100 (c =…NEET 2025
In the product F = q( v B) = q v (B i + B j + B 0 k ) for q = 1 and v = 2 i + 4 j + 6 k…NEET 2021
An infinitely long straight conductor carries a current of 5 A as shown. An electron is…NEET 2021
Ionised hydrogen atoms and -particles with the same momenta enter a constant magnetic…NEET 2019

From Physics › Moving Charges and Magnetism › Force on a moving charge and on a current — lectures, notes and every past question on it.

Last revised 7 Sept 2026. Found a mistake? Tell us — corrections are the fastest thing we act on.

ShareWhatsApp Telegram