An L-shaped conductor consists of two perpendicular straight arms

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

Problem

An L-shaped conductor consists of two perpendicular straight arms, each

0.30\,\text{m}

long, lying in the plane of the page. A current of

15\,\text{A}

flows from the common junction first along the

+x

-axis and then along the

+y

-axis. The region contains a uniform magnetic field of

0.40\,\text{T}

directed out of the page. Which of the following gives the magnitude and direction of the net magnetic force on the entire conductor? (a)

3.6\,\text{N}

toward south-east (b)

2.5\,\text{N}

toward south-east (c)

2.5\,\text{N}

toward north-east (d)

0\,\text{N}

(forces cancel)