A circular loop of 20 turns has its radius uniformly reduced from to in while it…

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

Problem

A circular loop of 20 turns has its radius uniformly reduced from

10\,\text{cm}

5\,\text{cm}

0.20\,\text{s}

while it remains perpendicular to a uniform magnetic field of

0.50\,\text{T}

. What is the magnitude of the average induced emf? (a)

1.57\,\text{V}

(b)

0.59\,\text{V}

(c)

1.18\,\text{V}

(d)

2.36\,\text{V}