A circular ring of radius a is made from a wire having resistance `(lambda)` per unit length. The ring is mounted on a car such that ring remains vertical. The care moves along a horizontal circle of radius R and completes n revolutions per minute. The horizontal component of earth's magnetic field be H,
The emf induced in the ring is

A circular ring of radius a is made from a wire having resistance (lambda) per unit length. The ring is mounted on a car such that ring remains vertical. The care moves along a horizontal circle of radius R and completes n revolutions per minute. The horizontal component of earth's magnetic field be H, Calculate average rate at which heat is produced in the ring

A circular ring of radius a is made from a wire having resistance (lambda) per unit length. The ring is mounted on a car such that ring remains vertical. The care moves along a horizontal circle of radius R and completes n revolutions per minute. The horizontal component of earth's magnetic field be H, Calculate average rate at which heat is produced in the ring

A horizontal ring of radius r spins about its axis with an angular velocity omega in a uniform vertical magnetic field of magnitude B . The emf induced in the ring is

A half ring of radius R has a charge of lambda per unit length. The electric force on 1C charged placed at the center is

A small element l cut from a circular ring of radius a and lamda charge per unit length. The net electric field at the centre of ring is

A small part of dl length is removed from a ring having charge per unit length lamda . Find electric field at centre due to remaining ring.

A small part of dl length is removed from a ring having charge per unit length lamda . Find electric field at centre due to remaining ring.

A single wire ACB passes through a smooth ring at C which revolves at a constant speed in the horizontal circle of radius r as shown in the fig. the speed of revolution is

A horizontal ring of radius r = (1)/(2) m is kept in a vertical constant magentic field 1 T . The ring is collapsed from maximum area to zero area in 1 s . Then the emf induced in the ring is