Calculate the e.m.f . induced in a coil of inductance 15 H in which the current changes from 8 ampere to 5 ampere in 1 second.

The average e.m.f. induced in a coil in which the current changes from 2 ampere to 4 ampere in 0.05 second is 8 volt. What is the self inductance of the coil?

A coil of dimensions 30 cm xx 20 cm is kept such that its plane is at right angles to the direction of uniform magnetic field of value 0.08 Wb/m^2 . Calculate the e.m.f . induced in the coil, If the value of field is reduced to 25 percent of the original value in 0.6 second.

An e.m.f. of 5 volt is produced by a self inductance, when the current changes of a steady rate from 3A to 2A in1 millisecond. The value of self inductance is

The back e.m.f. induced in an inductive coil is 100 V when the current in the coil changes uniformly from zero to10A in 0.01s. Find the self-inductance of the coil.

A current 10 A in the primary of a transformer is reduced to zero at the uniform rate of 0.1 second. If the co-efficient of mutual inductance is 3H, what isthe e.m.f. induced in the secondary and change in the magnetic flux per turn in the secondary if it has 50 turns?

Induced e.m.f. produced in the coil is 4mV. What is the change in flux associated with the coil in 100 seconds?

A pair of adjacent coils has a mutual inductance of 1.5H. If the current in one coil changes from 0 to 10 A in 0.2s, what is is the change of flux linkage with the other coil?

The mutual inductance of a pair of coils is 0.75H. If the current in the primary coil changes from 0.5A to zero in 0.01s, find the average induced e.m.f. in the secondary.

The coefficient of mutual inductance between a pair of coils is 5mH. Find the e.m.f.induced in one coil when the current in the other coil changes at the rate of 250A//s .

The value of mutual inductance of two coils is B 10 mH. If the current in one of the coil changes from 5A to 1A in 0.2 s, calculate the value of emf induced in the other coil. Also calculate the value of induced charge passing through thecoil if its resistance is 5 ohm.