Physics

Problem

A coil with 200 tightly wound turns and radius

5.0\,\text{cm}

is oriented so that its plane is perpendicular to a uniform magnetic field. The field increases uniformly from

0.10\,\text{T}

0.60\,\text{T}

0.020\,\text{s}

. What is the magnitude of the average emf induced in the coil during this interval? a)

78\,\text{V}

39\,\text{V}

20\,\text{V}

160\,\text{V}