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A conducting wire ab of length l resist...

A conducting wire ab of length l resistance r and mass m starts sliding down at t=0 on a smooth, vertical thick pair of connected rails as shown. The terminal speed of the wire is

A

`(mgR)/(Bl)`

B

`(mgr)/(B^2l^2)`

C

`(mgl)/(B^2r^2)`

D

None

Text Solution

Verified by Experts

The correct Answer is:
B
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