A circular conducting loop of resistance lies in a region where the magnetic flux…

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A circular conducting loop of resistance

0.20\,\Omega

lies in a region where the magnetic flux perpendicular to its plane is decreasing uniformly at the rate

0.10\,\text{Wb\,s}^{-1}

. The magnetic field is directed into the page. Determine the magnitude and sense of the induced current as seen by an observer facing the loop. (a)

0.50\,\text{A}

anticlockwise (b)

0.20\,\text{A}

clockwise (c)

0.50\,\text{A}

clockwise (d)

2.0\,\text{A}

clockwise