PhysicsCurrent question
posted by MP .
Two long straight parallel wires separated by 1.00mm carrying currents in opposite directions with current equaling 10.0A each. Find the magnitude and direction of the magnetic field at Point A which = 0.50mm, Point B = 0.50mm, and Point C=0.50mm and write the directions of each. At each of these points, also find the magnitude and direction of the magnetic force on a proton, which is moving to the left at speed of 3.40 x 10^6 m/s? I would really appreciate your help on this one. Thanks

PhysicsCurrent question 
bobpursley
I have no idea where the points are. It is a vector problem, You will have to add the two component vectors (from each current) and determine the direction. Your cross product rule (or the right hand rule) will help. That gives the force
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