Electromagnetic...

Two coils of self inductances 2 mH and 8 mH are placed so close together that the effective flux in one coil is completely linked with the other. The mutual inductance between these coils is:

The current I in an induction coil varies with time t according to the graph shown in the figure. Which of the following graphs shows the induced emf $$(\varepsilon)$$in the coil with time

A long straight wire is placed along the axis of a circular ring of radius R. The mutual inductance of this  system is 

Magnetic flux $$\phi$$ (in weber) linked with a closed circuit of resistance $$10 \Omega$$ varies with time t (in second) as $$\phi   = 5{t^2} - 4t + 1$$. The induced electromotive force in the circuit at t = 0.2 second is

Refer to the figure. When does the the galvanometer (G) deflect ?

A conducting loop is placed in a uniform magnetic field with its plane perpendicular to the field. An emf is induced in the loop if

The induced emf produced when a magnet is inserted into a coil does not depend upon:

Whenever current is changed in a coil, an induced e.m.f. is produced in the same coil, This property of the coil is due to

Whenever the magnetic flux linked with a coil changes, an
induced e.m.f. is produced in the circuit. The e.m.f. lasts

To obtain maximum EMF from a number of cells, they must be connected in