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 circular conducting coil of radius a and resistance R is placed with its plane perpendicular to a magnetic field. The magnetic field varies with time according to the equation B=B_(0)sinomegat . Obtain the expression for the induced current in the coil.

A coil has a number of turns n and area A. It is placed at an angle 60^@ with the direction of magnetic field . If B is change in magnetic field with time then what will be induced e.m.f in the coil?

A coil of area 0.15 m^2 and 100 turns is placed perpendicular to a magnetic field, The field changes from 5 xx 10^-3 Wbm^-2 to 2 xx 10^-3 Wbm^-2 in a time interval of 30 millisecond. Find the induced emf in the coil.

A coil having n number of turns and area A is placed in a magnetic field B so that its axis makes an angles 60^(@) with the direction of B.If B changes with time, the magnitude of the emf induced in the coil will be

A steady current is flowing through a long wire. If it is converted into a single turn circular coil, the magnetic field produced at its is B. Now it is converted into a circular coil having n tunrs. What will be the magnetic field at the centre of the coil ?

A rectangular coil of area 20cm times 15cm and of 485 turns is rotating with a speed pf 1800 rpm in a magnetic field of intensity 20Wb .m^-2 .When the coil is inclined at 60^@ with the magnetic field , what will be the induced emf in the coil?

A rectangular coil of area 0.2 m^(2) is held in a magnetic field of strength 2T in such a way that the normal to the plane of the coil makes an angle 30^(@) with the field. What is the flux linked with the coil?