Two conducting rings P and Q of radii r and 2r rotate uniformly in opposite directions with centre of mass velocities 2v and v respectively on a conducting surface S. There is a uniform magnetic field of magnitude B perpendicular to the plane of the rings. The potential difference between the highest points of the two rings is

Two conducting rings P and Q of radii r and 2r rotate uniformly in opp

1.	Two conducting rings P and Q of radii r and 2r rotate uniformly in opposite directions with centre of mass velocities 2v and v respectively on a conducting surface S. There is a uniform magnetic field of magnitude B perpendicular to the plane of the rings. The potential difference between the highest points of the two rings is
Answer» Two conducting rings $P$ and $Q$ of radii $r$ and $2 r$ rotate uniformly in opposite directions with centre of mass velocities $2 v$ and $v$ respectively on a conducting surface $S$ . There is a uniform magnetic field of magnitude B perpendicular to the plane of the rings. The potential difference between the highest points of the two rings is

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