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 magnetic field, the plot of magnitude of induced emf ($\varepsilon$) with time ($t$) is given by

Question

Dr. Abubacker · Accepted Answer

[Solution by Dr. Abubacker] While the loop is partly inside the field, the emf is the motional emf $\varepsilon=Blv$, where $l$ is the width of the loop edge cutting the field and $v$ is constant. So $\varepsilon$ is constant in time: a horizontal line. Answer (4).

Q. 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 magnetic field, the plot of magnitude of induced emf ($\varepsilon$) with time ($t$) is given by

Explanation

Reviewed by Dr. Abubacker

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