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A thin semi-circular conducting ring (PQ...

A thin semi-circular conducting ring (PQR) of radius r is falling with its plane vertical in a horizontal magnetic field B, as shown in the figure. The potential difference developed across the ring when its speed v, is

A

Zero

B

`(Bvpir^(2))/(2)` and P is at higher potential

C

`pi r BV and R ` is at higher potential

D

2rBv and R is at higher potential

Text Solution

Verified by Experts

The correct Answer is:
D
2rBv and R is at higher potential
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