Physics

Problem

A single circular loop of area

0.10\,\text{m}^{2}

is placed in a uniform magnetic field of

0.40\,\text{T}

. The angle

\theta

between the field and the normal to the loop varies with time as

\theta = 2t^{2}

(in radians,

t

in seconds). The magnitude of the induced emf at

t = 2\,\text{s}

is closest to a)

0.64\,\text{V}

0.16\,\text{V}

0.32\,\text{V}

0.05\,\text{V}