There is one circular current carrying loop. A charged particle is projected with a certain speed along the axis of the coil. How will the coil exert magnetic force on the charged particle?

Explanation

We know that magnetic field due to a current carrying circular loop at any point on its axis is directed along the axis. Charge is projected along the axis of the coil, so ita velocity is parallelor antiparallel to the magnetic field. In such a situation there will not be any magnetic force on the particle.