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 thin semi-circular conducting ring (PQR) of radius r is falling with

1.	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
Answer» <P>Zero `(Bvpir^(2))/(2)` and P is at higher potential `PI r BV and R ` is at higher potential 2rBv and R is at higherpotential Solution :2rBv and R is at higher potential

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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

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