A charged particle enters a magnetic field with a velocity v in a direction perpendicular to the field. Find an expression for the radius of the circular path of the particle.

A charge particle enters a magnetic field with velocity v in a direction perpendicular to the field. Find the expression for the redius of the circular path of the particle.

Write an expression for the velocity of the centre of a mass of particles.

Does a magnetic field exert a force on a static charge?

A proton enters a uniform magnetic field of intensity 1.5 T in a direction perpendicular to the field. If the K.E. of the proton is (8.5 x 10^-25 J) , find the force acting on it.

A rectangular coil of turns n and area A isrotating withangular velocity a in a uniform magnetic field B .Find an expression for the e.m.f generatedin the coil.

A square loop of a conducting material of side and resistance r is dragged through a uniform magnetic field B with uniform velocity nu keeping the plane of the loop perpendicular to the direction ofthe field. What isthe current flowing through the loop?

A proton moving with velocity (10^7) m/s to enters a magnetic field of 1.5 T making an angle 30° with the direction of the field. Find the radius of the helical path and its frequency of rotational motion