A magnetic needle is kept in a non-uniform magnetic field. It experiences: (a) neither a force nor a torque (b) a torque but not a force (c) a force but not a torque (d) a force and a torque

Answer: (d). In a non-uniform field the forces on the two poles are unequal, so a net force acts. The pole forces are also not along the same line in general, so a torque acts too. So the answer is (d) a force and a torque.

A magnetic needle is kept in a non-uniform magnetic field. It… | JEE Main 2005 (AIEEE)

Q29JEE Main 2005 · AIEEEEasy

Field of a Magnet & Magnet in a Uniform Field

A magnetic needle is kept in a non-uniform magnetic field. It experiences:

Show answer and solution

Answer: (d)

In a non-uniform field the forces on the two poles are unequal, so a net force acts.
The pole forces are also not along the same line in general, so a torque acts too.
So the answer is (d) a force and a torque.

Report a mistake

More questions on Field of a Magnet & Magnet in a Uniform Field

A coil in the shape of an equilateral triangle of side l is suspended between the pole…NEET 2005 (AIPMT)
A magnetic needle lying parallel to a magnetic field requires W units of work to turn it…JEE Main 2003 (AIEEE)
A bar magnet of magnetic moment M is placed in a magnetic field of induction B. The…NEET 1999 (AIPMT)
The work done in turning a magnet of magnetic moment M by an angle of 90° from the…NEET 1995 (AIPMT)
Two identical small bar magnets each of dipole moment 3√(5) J/T are placed at a center to…JEE Main 2026 (4 Apr, Shift 2)
A magnetic dipole lying parallel to a magnetic field requires ' W ' units of work to turn…MHT CET 2026 (19 May, Shift 1)
A short bar magnet placed with its axis at 30° with an external field of 800 Gauss…JEE Main 2026 (24 Jan, Shift 1)
The work done in turning a magnet of magnetic moment ' M ' by an angle of 90° from the…MHT CET 2025 (26 Apr, Shift 1)

Field of a Magnet & Magnet in a Uniform Field question from JEE Main 2005 (AIEEE)

More questions on Field of a Magnet & Magnet in a Uniform Field