Mon February 20, 2012 By:

An electron and a proton, moving parallel to each other in the same direction with equal momenta,enter into a uniform magnetic field, which is right angle to their velocities. Trace their trajectories in the magnetic field and explain with derivation.

Expert Reply
Thu February 23, 2012
The electron will move in circular motion of radius r=P/qB
But photon does not have any charge so it is not deflected by magnetic or electric field.
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