A beam of electrons is bent to move in a circle of 5 cm radius under the influence of a magnetic field of induction of 0.01 tesla. Find the velocity of electrons.(Use standard data).

A charged particle of 1.6 xx 10^- 19 coulomb moves with a velocity of 1.6 xx 10^6 m/s perpendicular to a uniform magnetic field of induction 300 Tesla. Find the magnitude of the force on it.

An electron of mass 'm' charge e enters into a uniform magnetic field region of induction B and is found to describe a circle of radius r. The magnetic field induction B can be calculated from the equaiton

An electron moves through a uniform magnetic field at 90^@ to find direction. Then the path of the electron shall be

In Bohr's model of hydrogen atom, the electron circulats around nucleus on a path of radius 0.53A^@ at a frequency of 6.8 xx 10^15 rev//sec . Calculate magnetic field induction at the centre of the nucleus. What is the effective magnetic dipole moment?

A rod of length 20 cm rotating with an angular speed of 100 revoltuions per minute in a magnetic field of strength 0.5 tesla. The potential diffeence between the two ends of the rod in volts is

The electron in the hydrogen atom is moving with a speed of 2.3 xx 10^6 m/s in an orbit of radius 0.53 A^@ . Calculate magnetic moment of the revolving electron.

A current of 10 amp. Flows through a 20 turns flat circular coil of radius 5 cm. Find the field inductions ( vecB) at the centre of the coil.