Electron moving at right angle to a uniform magnetic field complete a circular orbit of `10^(-2)`m radius in `10^-10s`. What is the magnitude of magnetic field.

A electron and proton possesing equal momentum and injected to a region at right angle to a uniform magnetic field. Calculate the ratio of this radius while moving inside the magnetic field.

An electron is revolving along a circular path of radius 1 À with a frequency (10^15) Hz. What is the associated magnetic moment?

An electric dipole of length 10cm having charges +- 6*10^-3 C , placed at 30° with respect to a uniform electric field experiences a torque of magnitude 10 sqrt3 Nm . Calculate the magnitude of the electric field.

A [He^(2+)] ion travels a velocity of 10^5 m/s at right angles to a magnetic field of 0.80 T. What is the magnitude of the magnetic force on the ion ?

A short bar magnet plaved with its axis at 30^@ with a uniform external magnetic field of 0.25T experiences a torque of 4.5xx10^(-2)J . What is its magnetic moment?

A rectangular coil carrying current is placed in a uniform magnetic field in such a way that normal to the coil makes an angle theta with the direction of magnetic flux density. Find the magnitude of torque acting on the coil Define magnetic moment of a current loop.