A charge moving with velocity v in X-direction is subjected to a field of magnetic induction in negative X – direction . As a result, the charge will :

A straight wire of length 0.5 m and carrying a current of 1.2 A is placed in uniform magnetic field of induction 2 T.  The magnetic field is perpendicular to the length of the wire. The  force on the wire is :

A coil of one turn is made of a wire of certain length and then from the same length a coil of two turns is made. If the same current is passed is both the cases, then the ratio of the magnetic induction at their centers will be :

A neutron of kinetic energy 50 keV is describing a circular orbit of radius 0.5 m in a plane perpendicular to magnetic field B.  The kinetic energy of the proton that describes a circular orbit of radius 0.5 m in the same plane with the same B is

A current carrying coil is subjected to a uniform magnetic field. The coil will orient so that its plane becomes 

Magnetic field due to 0.1 A current flowing through a circular coil of radius 0.1m and 1000 turns at the centre  of the coil is :

Current is flowing in a coil of area A  and number of turns N, then magnetic moment of the coil, M is equal to :

The magnetic field at a distance  r from a long wire carrying current  I is 0.4 T.  The magnetic field at a distance 2r is :

Tesla is the unit of :

The total charge induced in a conducting loop when it is moved in magnetic field depends on :