Question 48 of 153

A rectangular metallic loop is moving out of a uniform magnetic field region to a field free region with a constant speed. When the loop is partially inside the magnate field, the plot of magnitude of induced emf $(\varepsilon)$ with time $(t)$ is given by

ABCD

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Answer: (D)

$\begin{aligned} & E=-\frac{d \phi}{d t} \\ & \phi=B b x \\ & |E|=B b v\end{aligned}$