Total Magnetic flux in a circuit containing a coil changes from 2.0 Weber to 12 Weber in 0.2 sec. The emf induced in the coil would be,

Total magnetic flux through a circular coil of single turn and radius R, Carrying current I₀ is given by Φ =

Total magnetic flux through a square coil of single turn and side L, kept in a uniform magnetic field of strength B₀ is given by Φ = (Angle between the coil and the magnetic field is 0⁰)

A coil having an area of A₀ is placed in a magnetic field which changes from B₀ to 4B₀ in a time interval of t₀. The emf induced in the coil would be

The coil has an area of 0.1 m² and it has 100 turns. It is placed perpendicularly in a magnetic field of strength 0.4 T , it is rotated through 90⁰ in 0.1 sec. The average emf induced in the coil is

A magnetic field of 2X10^-2 T acts at right angles to a coil of area 100 cm² with 50 turns. The average emf induced in the coil is 0.01 V, when it is removed from the field in time t. The value of t is

A metallic ring is attached with the wall of a room. When the South pole of the magnet is brought near to it, the induced current in the ring will be

A metallic ring is attached with the wall of a room. When the South pole of the magnet is taken away from it, the induced current in the ring will be

A wire is bent to form the double loop shown in the figure. If the uniform magnetic field in the space is increasing, The current in the loop will be