Figure (38-E5) shows a square loop of side \( 5 \mathrm{~cm} \) being moved towards right at a c...

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Figure (38-E5) shows a square loop of side \( 5 \mathrm{~cm} \) being moved towards right at a constant speed of \( 1 \mathrm{~cm} / \mathrm{s} \). The
\( P \) front edge enters the \( 20 \mathrm{~cm} \) wide magnetic field at \( t=0 \). Find the emf induced in the loop at (a) \( t=2 \mathrm{~s} \),
W.
(b) \( t=10 \mathrm{~s} \), (c) \( t=22 \mathrm{~s} \) and (d) \( t=30 \mathrm{~s} \).
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