A long wire carrying 5 A current perpendicular to the xy-plane intersects the x-axis at x = -2cm. A second, parallel wire carrying a 3 A current intersects the x-axis at x = +2cm. At what point or points on the x-axis is the magnetic field equal to 0 if a) the two currents are in the same direction and b) the two currents are in opposite directions?
I'm completely lost. Someone help me.
I'm completely lost. Someone help me.