What is the nature of magnetic field in a moving coil galvanometer?

What isi the importance of radial magnetic field in moving coil galvanometer?

With the help of diagram explain the principle, construction and theory of a moving coil galvanometer. What is the function of iron core in moving coil galvanometer?

What is the work done by a magnetic field on a moving charge?

State the principle of moving coil galvanometer?

State the principle of moving coil galvanometer?

What is the nature of magnetic field produced by straight solenoid?