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A very long uniformly charged rod falls with a constant velocity v through the centre of a circular loop. Then the magnitude of induced emf in loop is___

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$\frac{μ_{0}}{2} {λv}^{2}$

zero

$\frac{μ_{0}}{2 π} {λv}^{2}$

$\frac{μ_{0}}{2 λ} v$

answer is D.

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Detailed Solution

As charged rod is moving with constant velocity, it is equivalent to a current carrying wire.
$∴$ Magnetic field due to its motion is also constant, no change in flux so no emf.

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