Q4.8Multiple correct
Consider a wire carrying a steady current, I placed in a uniform magnetic field B perpendicular to its length. Consider the charges inside the wire. It is known that magnetic forces do no work. This implies that,
- (a)motion of charges inside the conductor is unaffected by B since they do not absorb energy.
- (b)some charges inside the wire move to the surface as a result of B.
- (c)if the wire moves under the influence of B, no work is done by the force.
- (d)if the wire moves under the influence of B, no work is done by the magnetic force on the ions, assumed fixed within the wire.