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Four identical conducting rods are conne...

Four identical conducting rods are connected by pins. The velocity of point `R` is `v`. A uniform magnetic field `B` acts out of the paper. Choose the correct statement(s). (`PQ=PS=4l` and `QR=SR=3l`)

A

The motional emf across `PQ` is `(6Blv)/(5)`

B

The motional emf across `PQ` is `(3Blv)/(5)`

C

The motional emf across `QR` is `(3Blv)/(5)`

D

The motional emf across `QR` is `(6Blv)/(5)`

Text Solution

Verified by Experts

`v=20-x`
Force `=mv(dv)/(dx)`
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