A cylindrical copper shell of radius and negligible thickness is placed coaxially in…

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

Problem

A cylindrical copper shell of radius

0.10\,\text{m}

and negligible thickness is placed coaxially in a region where a uniform magnetic field along its axis changes at the rate

2\,\text{T\,s}^{-1}

. Assuming the field is perpendicular to the circular cross-section, find the magnitude of the emf induced around the circumference of the shell. (a)

1.26\,\text{V}

(b)

0.020\,\text{V}

(c)

0.063\,\text{V}

(d)

0.0063\,\text{V}