A conducting ring of radius 2R rolls on a smooth horizontal conducting surface as shown in figure-5.295. A uniform horizontal magnetic field B is perpendicular to the plane of the ring. The potential of A with respect to O is:

A circular conducting ring of radius 'a' is rolling with slipping on a horizontal surface as shown. A uniform magnetic field B is existing perpendicular to the plane of motion of the ring. The emf iniduced between the points A and D of the ring is

A circular conducting ring of radius 'a' is rolling with slipping on a horizontal surface as shown. A uniform magnetic field B is existing perpendicular to the plane of motion of the ring. The emf iniduced between the points A and D of the ring is

A vertical conducting ring of radius R falls vertically with a speed V in a horizontal uniform magnetic field B which is perpendicular to the plane of the ring. Which of the following statements is correct?

A vertical conducting ring of radius R falls vertically with a speed V in a horizontal uniform magnetic field B which is perpendicular to the plane of the ring. Which of the following statements is correct?

Two conducting rings of radii r and 2r move in apposite directions with velocities 2 upsilon and upsilon 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 of radii r and 2r move in apposite directions with velocities 2 upsilon and upsilon 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

A ring of radius R is rolling on a horizontal plane with constant velocity v. There is a constant and uniform magnetic field B which is perpendicular to the plane of the ring. Emf across the lowest point A and right-most point C as shown in the figure will

A ring of radius R is rolling on a horizontal plane with constant velocity v. There is a constant and uniform magnetic field B which is perpendicular to the plane of the ring. Emf across the lowest point A and right-most point C as shown in the figure will

Two conducting rings P and Q of radius r and 3r move in opposite directions with 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 a