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A conducting rod of length I and velocit...

A conducting rod of length I and velocity v moves in a magnetic field B. If `rho` is the resistivity of the material of rod, then the induced current produced in the rod is _____

A

`(BvA sin theta)/rho`

B

`(BvA)/rho`

C

`(BvA cos theta)/rho`

D

0

Text Solution

Verified by Experts

The correct Answer is:
B
Induced emf `epsilon=Bvl`
`therefore` IR=Bvl
`therefore I=(BvlxxA)/(rhol) [ because R=(rhol)/A]`
`therefore I=(BvA)/rho`
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