The magnetic potential energy, when a magnetic bar of magnetic moment m is placed perpendicular to the magnetic field B is (a) -mB/2 (b) Zero (c) -mB (d) mB

Answer: (b). U = -mBcos θ with θ = 90°. U = -mBcos 90° = 0 So the answer is (b) zero.

The magnetic potential energy, when a magnetic bar of magnetic moment… | NEET 2024

Q7NEET 2024Easy

Field of a Magnet & Magnet in a Uniform Field

The magnetic potential energy, when a magnetic bar of magnetic moment $\vec{m}$ is placed perpendicular to the magnetic field $\vec{B}$ is

Show answer and solution

Answer: (b)

The magnetic moment of a bar magnet is 0.5 Am². It is suspended in a uniform magnetic…JEE Main 2024 (4 Apr, Shift 2)
The magnetic potential due to a magnetic dipole at a point on its axis situated at a…JEE Main 2024 (29 Jan, Shift 1)
A bar magnet with a magnetic moment 5.0 Am² is placed in parallel position relative to a…JEE Main 2023 (31 Jan, Shift 1)
A bar magnet having a magnetic moment of 2.0 × 105 JT ⁻¹, is placed along the direction…JEE Main 2022 (26 Jun, Shift 2)
A magnetic dipole of magnetic moment M, is freely suspended in a magnetic field of…MHT CET 2021 (24 Sep, Shift 2)
Two short magnetic dipoles m1 and m2 each having magnetic moment of 1 Am2 are placed at…JEE Main 2021 (26 Aug, Shift 1)
Two identical bar magnets each of magnetic moment M, separated by some distance are kept…MHT CET 2020 (16 Oct, Shift 1)
A small bar magnet placed with its axis at 30° with an external field of 0.06 T…JEE Main 2020 (4 Sep, Shift 1)