Physics

Problem

A conducting loop of radius

\frac{10}{\sqrt{\pi}}

cm is placed perpendicular to a uniform magnetic field of 0.5 T. The magnetic field is decreased to zero in 0.5 s at a steady rate. The induced emf in the circular loop at 0.25 s is: (1)

\text{emf} = 1 \text{ mV}

(2)

\text{emf} = 10 \text{ mV}

(3)

\text{emf} = 100 \text{ mV}

(4)

\text{emf} = 5 \text{ mV}

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