A coil with an average diameter of 0.02 m is placed perpendicular to a magnetic field of 6000 T. If the induced e.m.f. is 11 V when magnetic field is changed to 1000 T in 4 s, what is the number of turns in the coil ?

A coil with an average diameter of 0.04 m is placed perpendicular to a magnetic field of 4000T. If induced emf is 22V when the magnetic field is changed to 2000T in 2s. What is the number of turns in the coil?

A 70 turn coil with average diameter of 0.02 m is placed perpendicular to magnetic field of 9000 T. If the magnetic field is changed to 6000 T is 3s, what is the magnitude of induced emf ?

A 50 turn coil with an average diameter of 0.04 m is placed perpendicular to a magnetic field of 5000 T. If the magnetic field is changed to 2000 T in 5 s, find the magnitude of the induced emf.

A closely wound coil of radius 0.02 m is placed perpendicular to the magnetic field. When the magnetic field is change from 8000 T to 2000 T in 6 s, an emf of 44 V is induced. Calculate the number of turns in the coil.

A coil containing 20 turns of average diameter 0.02 m is placed perpendicular to a magnetic field of intensity 1.6 xx 10^4 T . The magnetic field changes to 1.8 xx 10^3 T in 4 s. A resistor of resistance 15 ohm is connected in sereis with the coil. If the resistance of the coil is 5 ohm, find the induced current passing through the resistor.

A circular coil of 100 turns has radius 4 cm. It is placed with its plane perpendicular to a magnetic field of 3T. If the magnetic field, reduces to 1 T in 0.2s, calculate the e.m.f induced in the coil.

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