Physics

Problem

A conducting rod

1.0\,\text{m}

long slides with a speed of

3.0\,\text{m s}^{-1}

on smooth, fixed, conducting rails that are

1.0\,\text{m}

apart and connected at one end by a resistor of

2\,\Omega

. A uniform magnetic field of

0.50\,\text{T}

is directed perpendicular to the plane of the rails. What is the magnitude of the current in the resistor? a)

0.60\,\text{A}

0.75\,\text{A}

1.5\,\text{A}

0.38\,\text{A}