A rectangular coil has 50 turns

PHYSICS · Multi-part · AP · Physics 2: Algebra-based · Magnetism and Electromagnetism · Magnetism and Electromagnetism

Problem

A rectangular coil

ABCD

has 50 turns. The lengths of the sides are

AB = CD = 6\,\text{cm}

and

BC = DA = 4\,\text{cm}

. The coil is mounted on a light axle so that sides

AB

and

CD

are horizontal. A uniform magnetic field of

0.25\,\text{T}

acts horizontally from north to south. A current of

3\,\text{A}

flows through the coil in the order

A\rightarrow B\rightarrow C\rightarrow D

as seen from the west side. (a) Direction of force on side

AB

(b) Direction of force on side

CD