The source of magnetic field is

An AC generator is constructed using coil of area 2.5 m^(2) and 500 turns . Coil rotates with an angular velocity of 60 rad/s . Magnetic field applied on coil is 0.6 T. Resistance of the coil is 500 ohm . Find the rms current in the coil . If we assume that coil is fixed but instead source of magnetic field is rotated around the coil will the generator work. ?

What is the source of magnetic field?

Is the source of magnetic field analogue to the source of electric field ?

List three sources of magnetic fields.

List three sources of magnetic fields.