A straight conducting rod long has a resistance of

PHYSICS · Single correct · CBSE · Physics · Electromagnetic Induction · Electromagnetic Induction

Problem

A straight conducting rod

0.25\,\text{m}

long has a resistance of

0.50\,\Omega

. It moves at a constant speed of

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

perpendicular to a uniform magnetic field of magnitude

0.30\,\text{T}

. What is the power dissipated as thermal energy in the rod while it moves through the field? (a)

0.30\,\text{W}

(b)

0.18\,\text{W}

(c)

0.36\,\text{W}

(d)

0.09\,\text{W}