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A rod of leng...

Question

A rod of length $l$ is translating at velocity $v$ making an angle $θ$ with the length as shown. If its resistance is $R$ , then find emf and current in the rod?

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Solution

We know that $e m f = B l v$
here $l =$ length of rod
$v =$ velocity
$∴ e m f = B l v$
now for current ;
$e m f = I (R + r)$
$B l v = I (R + r)$
$I = \frac{B l v}{R}$

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