Physics

Problem

A rectangular coil of 20 turns has dimensions

4\,\text{cm}\times3\,\text{cm}

. It is placed in a uniform magnetic field of

0.20\,\text{T}

with its plane parallel to the field. What is the torque on the coil when it carries a current of

0.50\,\text{A}

? a)

0.024\,\text{N m}

0.00012\,\text{N m}

0.0024\,\text{N m}

0.00024\,\text{N m}