A metal bar of length moves with a velocity v parallel to an...

A metal bar of length

\ell

moves with a velocity

v

parallel to an infinitely long straight wire carrying a current

I

as shown in the figure. If the nearest end of the perpendicular bar always remains at a distance

2 \ell

from the current carrying wire, the potential difference (in volt) between two ends of the moving bar is A metal bar of length moves with a velocity v parallel to an infinitely long straight wire carrying a current I as

A metal bar of length moves with a velocity v parallel to an infinitely long straight wire carrying a current I as

Options

A $\frac{\mu_0 I v}{2 \pi}$
B $\frac{\mu_0 I v}{6 \pi}$
C $\frac{\mu_0 I v}{2 \pi} \ell$
D $\frac{\mu_0 I v}{2 \pi} \ell$

Correct answer

D. $\frac{\mu_0 I v}{2 \pi} \ell$

Step-by-step solution

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