I want to know what are the total forces on a moving charge due to another charge.
I heard that moving charges is the cause of all magnetism.So what I think is that if we have a charge in motion relative to another motion the stationary charge (stationary in its own reference frame)acts like a magnet and exerts Lorentz force on other charge. One thing is unclear; does the force on moving charge is magnetic force plus the coulomb force or simply is it that that the total force experienced by moving charge is magnetic only.
I also want to know how can we draw magnetic field lines around stationary charge by using just the fact that another charge is moving. Which side of charge will behave as north pole and which will behave as a south pole?
I am of course considering the possibility to determine the direction of magnetic field without actually doing the experiment and seeing the direction of force which will then give the direction of magnetic field.