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A conducting rod of length l and mass m ...

A conducting rod of length l and mass m is moving down a smooth inclined plane of inclination `theta` with constant i is flowing in the conductor in a direction perpendicular to paper inwards. A vertically upward magnetic field `vec B` exists in space. Then, magnitude of magnetic field `vec B` is

A

`(mg)/(il)sintheta`

B

`(mg)/(il)tantheta`

C

`(mg cos theta)/(il)`

D

`(mg )/(ilsin theta)`

Text Solution

Verified by Experts

The correct Answer is:
B
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