A wire is bent in form of square of side a in a time varying magnet...

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A wire is bent in form of square of side a in a time varying magnetic field \( B=\alpha B_{0} t \hat{B} \). If resistance per
\( \mathrm{P} \) unit length is \( \lambda \)

W
Potential difference \( \mathrm{b} / \mathrm{w} \) P \& Q is:
(1) \( 5 \mathrm{~V} \)
(2) 0
(3) \( 2 \mathrm{~V} \)
(4) None of these
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