Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACMotional & Rotational EMFMedium2 minPYQ_2020

PhysicsMediumsingle choice

A uniform metal rod is moving with a uniform velocity $v$ parallel to a long straight wire carrying a current $I$ . The rod is perpendicular to the wire with its ends at distances $r_{1}$ and $r_{2}$ (with $r_{2} > r_{1}$ ) from it. The E.M.F. induced in the rod at that instant is

Options:

Answer:

Solution:

$B = \frac{μ_{0} i}{2 πx}$

$dε = Bv (dx)$

$ε = \frac{μ_{0} iv}{2 π} \int_{r_{2}}^{r_{1}} \frac{dx}{x} = (\frac{μ_{0} iv}{2 π} \ln \frac{r_{2}}{r_{1}})$

Stream:JEESubject:PhysicsTopic:EMI/ACSubtopic:Motional & Rotational EMF

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...