An equilateral loop of side length \( l \) is moved with constant v...

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An equilateral loop of side length \( l \) is moved with constant velocity \( v \) as shown in figure. The
\( \mathrm{P} \) current through the loop as a function of time

W is \( \frac{2 B v^{2} t}{\sqrt{n} R} \). Then the value of \( n \) is (The resistance of the loop is \( R \).)
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