A thin semicircular conducting ring of radius R is falling with its plane vertical in a horizontal magnetic induction Vector B. At the position MNQ, the speed of the ring is v. The potential difference developed across the ring is(a) zero (b) 1/2 BvπR2, and M is at a higher potential (c) πRBv, and Q is at a higher potential (d) 2RBv, and Q is at a higher potential

A thin semicircular conducting ring of radius R is falling with its pl

1.	A thin semicircular conducting ring of radius R is falling with its plane vertical in a horizontal magnetic induction Vector B. At the position MNQ, the speed of the ring is v. The potential difference developed across the ring is(a) zero (b) 1/2 BvπR2, and M is at a higher potential (c) πRBv, and Q is at a higher potential (d) 2RBv, and Q is at a higher potential
Answer» Correct Answer is: (d) 2RBv, and Q is at a higher potential

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