A coil with 200 tightly wound turns and radius is oriented so that its plane is…

PHYSICS · Single correct · GCSE · Physics · Magnetism and Electromagnetism · Magnetism and Electromagnetism

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}

(b)

39\,\text{V}

(c)

20\,\text{V}

(d)

160\,\text{V}