The number of turns of the coil of a moving coil galvanometer is n, the area enclosed by the coil is A and the magnetic field is B. Find how much torque will act on the coil if a current of strength I flows through that coil.

Discuss the working principle of a moving coil galvanometer.

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

In case of a moving coil galvanometer, what is the relation between the current I and the angle of deflection theta ?

Why a moving coil galvanometer cannot be used with an alternating current.

If current I flows in a coil of area A and number of turns n , the magnetic moment of the coil is

IF current I flows in a coil of area A and number of turns n, the magnetic moment of the coil is

The magnets of two suspended coil galvanometers are of the same strength so that they produce identical magnetic fields in the region of the coils. The coil of the first one is in the shape of a square of side a and that of the second one is circular of radius a// sqrt(pi) . when the same current is passed through the coils, the ratio of the torque experinced by the first coil to the experinced by the second one is

The radius of a circular coil having 100 turns is 5 cm and a current of 0.5A is flowing through this coil. If it is placed in a uniform magnetic field of stregth 0.001 T, then what torque will act on the coil, when the plane of the coil is perpendicular to the magnetic field ?

The radius of a circular coil having 100 turns is 5 cm and a current of 0.5A is flowing through this coil. If it is placed in a uniform magnetic field of stregth 0.001 T, then what torque will act on the coil, when the plane of the coil is inclined at 30^(@) with the magnetic field,

The radius of a circular coil having 100 turns is 5 cm and a current of 0.5A is flowing through this coil. If it is placed in a uniform magnetic field of stregth 0.001 T, then what torque will act on the coil, when the plane of the coil is parallel to the magnetic field,