A conducting rod of length \( 2 l \) is rotating with constant angular speed \( w \) about its p...

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A conducting rod of length \( 2 l \) is rotating with constant angular speed \( w \) about its perpendicular bisector. A uniform magnetic field \( \bar{B} \) exists parallel
\( \mathrm{P} \)
to the axis of rotation. The e.m.f. induced between two ends of the rod is
W
(1) \( B \omega l^{2} \)
(2) \( \frac{1}{2} B \omega l^{2} \)
(3) \( \frac{1}{8} B \omega l^{2} \)
(4) Zero
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