A rectangular coil of 200 turns

PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

A rectangular coil of 200 turns, each of area

5.0\,\text{cm} \times 4.0\,\text{cm}

, carries a current of

0.50\,\text{A}

. It is placed in a uniform magnetic field of

0.30\,\text{T}

such that the plane of the coil is parallel to the magnetic field lines. Calculate the magnitude of the torque acting on the coil. (a)

0.12\,\text{N m}

(b)

0\,\text{N m}

(c)

0.060\,\text{N m}

(d)

0.24\,\text{N m}