A beam of electrons is moving parallel to a beam of protons in the same direction with equal speed. WIll they attract or repel each other?

Two parallel beams fo positions moving in the same direction will

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 at right angles to their velocities.Trace their trajectories in the magnetic field.

An electron and a proton moving parallel to each other in the same direction with equal momenta enter into a unifrom magnetic field which is at right angles to their velocities. Trace their trajectories in the magnetic field?

Two parallel wires carrying currents in the same direction attract each other because of:

Unlike poles of magnet repel/attract each other.

Two trains A and B are moving on parallel tracks with same speed and in the same direction. An observer P is sitting in train A and another person Q is sitting in train B. Is Q at rest with respect to P?