A charged particle of mass m and charge q is projected with velocity `nu` making in angle `theta` with the direction of a uniform magnetic field of induction B. Find the expression for-
Time period of revolution

A charged particle of mass m and charge q is projected with velocity nu making in angle theta with the direction of a uniform magnetic field of induction B. Find the expression for- Pitch of the helical path followed by the particle.

A charged particle of mass m and charge q moving with velocity [v = 3i+ 4j - 2k] enters a magnetic field [B = 2i - 5j + 3k ]at right angles to the direction of bar(B) . Find the expression of the force experienced by the particle.

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.

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.