A coil carrying electric current is placed in uniform magnetic field (a) torque is formed (b) e.m.f is induced (c) both (a) and (b) are correct (d) none of these

Answer: (a). A current loop is a magnetic dipole, so a uniform field exerts a torque τ = m × B on it. No emf is induced, since the flux through a stationary coil in a steady field does not change. So the answer is (a) torque is formed.

A coil carrying electric current is placed in uniform magnetic field | NEET 1993 (AIPMT)

Q85NEET 1993 · AIPMTEasy

Current Loop as a Magnetic Dipole

A coil carrying electric current is placed in uniform magnetic field

Show answer and solution

Answer: (a)

A current loop is a magnetic dipole, so a uniform field exerts a torque $\vec\tau = \vec m \times \vec B$ on it.
No emf is induced, since the flux through a stationary coil in a steady field does not change.
So the answer is (a) torque is formed.

Report a mistake

More questions on Current Loop as a Magnetic Dipole

A current carrying coil is subjected to a uniform magnetic field. The coil will orient so…NEET 1988 (AIPMT)
The magnetic moments associated with two closely wound circular coils a and b of radius r…MHT CET 2026 (13 Apr, Shift 2)
A particle of charge ' q ' and mass ' m ' moves in a circular orbit of radius ' r ' with…MHT CET 2026 (18 Apr, Shift 2)
A rectangular coil of n turns has area A and it is placed in uniform magnetic field B. If…MHT CET 2026 (20 May, Shift 1)
Torque acting on a coil carrying current 'I' situated parallel to magnetic field of…MHT CET 2026 (16 Apr, Shift 1)
A uniform conducting wire of length '12a' and resistance R is wound up as a current…MHT CET 2026 (15 May, Shift 2)
A thin circular wire carrying current I has magnetic moment M. The shape of the wire is…MHT CET 2026 (20 Apr, Shift 2)
The ratio of magnetic field at the centre of the current carrying circular loop and its…MHT CET 2026 (18 Apr, Shift 1)

Current Loop as a Magnetic Dipole question from NEET 1993 (AIPMT)

More questions on Current Loop as a Magnetic Dipole