The magnitude of the force acting on a fixed current-carrying wire varies…

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

Problem

The magnitude of the force

F

acting on a fixed current-carrying wire varies sinusoidally with the angle

\theta

between the wire and the magnetic field. The curve passes through

F = 0\,\text{N}

\theta = 0°,\;180°\text{ and }360°

and reaches a peak value of

6\,\text{N}

\theta = 90°

. What is the expected magnitude of the force at

\theta = 150°

? (a)

5.2\,\text{N}

(b)

3\,\text{N}

(c)

4\,\text{N}

(d)

6\,\text{N}