Questions in Moving Charges and Magnetism

SelectQuestion
The deflection in a moving coil galvanometer is
A moving coil sensitive galvanometer gives at once much more deflection. To control its speed of deflection
In a moving coil galvanometer, the deflection of the coil $\theta $ is related to the electrical current i by the relation
The unit of electric current “ampere” is the current which when flowing through each of two parallel wires spaced 1 m apart in vacuum and of infinite length will give rise to a force between them equal to
A moving coil galvanometer has N number of turns in a coil of effective area A, it carries a current I. The magnetic field B is radial. The torque acting on the coil is
A small coil of N turns has an effective area A and carries a current I. It is suspended in a horizontal magnetic field $\vec B$ such that its plane is perpendicular to $\overrightarrow B $. The work done in rotating it by $180^\circ $ about the vertical axis is
A small coil of N turns has area A and a current I flows through it. The magnetic dipole moment of this coil will be
A current of 10 ampere is flowing in a wire of length 1.5 m. A force of 15 N acts on it when it is placed in a uniform magnetic field of 2 tesla. The angle between the magnetic field and the direction of the current is
A rectangular loop carrying a current i is placed in a uniform magnetic field B. The area enclosed by the loop is A. If there are n turns in the loop, the torque acting on the loop is given by
An electron moves with a constant speed v along a circle of radius r. Its magnetic moment will be (e is the electron's charge)

View Selected Questions (0)

Back to Categories

Back to Home