A rectangular coil of `200` turns and area `100 cm^(2)` is kept perpendicular to a uniform magnetic field of induction `0.25` tesla. If the field is reversed in direction in `0.01` second, the average induced emf in the coil is

A rectangular coil of 100 turns and size 0.1 m xx 0.05 m is placed perpendicular to a magnetic field of 0.1 T. If the field drops to 0.05 T in 0.05 second, the magnitude o the e.m.f. induced in the coil is

a coil of 1200 turns and mean area of 500 cm^(2) is held perpendicular to a uniform magnetic field of induction 4 xx 10^(-4) T . The resistance of the coil is 20 ohms. When the coil is rotated through 180^(@) in the magnetic field in 0.1 seconds the average electric current (in mA ) induced is :

A coil of 1500 turns and mean area of 500 cm^2 is held perpendicular to a uniform magnetic field of induction 2 xx 10^(-4) T . The resistance of the coil is 40 ohms. When the coil is rotated through 180^@ in the magnetic field in 0.2 seconds the average electric current (in mA) induced is

A rectangular coil of 100 turns and size 0.1mxx0.05m is placed perpendicular to a magnetic field of 0.1 T. If the field drops to 0.05 T in 0.05 s, the magnitude of the emf induced in the coil is

A rectangular coil of 100 turns and size 0.1mxx0.05m is placed perpendicular to a magnetic field of 0.1 T. If the field drops to 0.05 T in 0.05 s, the magnitude of the emf induced in the coil is

A rectangular coil of 100 turns and size 0.1mxx0.05m is placed perpendicular to a magnetic field of 0.1 T. If the field drops to 0.05 T in 0.05 s, the magnitude of the emf induced in the coil is

A circular coil of 1 turn and area 0.01m^(2) carries a current of 10A . It is placed in a uniform magnetic field of induction 0.1 tesla such that the plane of the circle is perpendicular to the direction of the field, the torque acting on the coil is

A circular coil of radius 2cm and 200 numbers of turns is placed perpendicular to uniform magnetic field of 2 T. The coil is turned through angle 180^@ in time interval of 0.5 s. What will be the average emf induced in the coil ?

A coil of area 100 cm^(2) has 500 turns. Magnetic field of 0.1 "weber"//"metre"^(2) is perpendicular to the coil. The field is reduced to zero in 0.1 second. The induced e.m.f. in the coil is