In: Physics
A long, straight wire lies on a horizontal table in the xy-plane and carries a current of 2.50 microA in the positive x-direction along the x-axis. A proton is traveling in the negative x-direction at speed 3.1 x 104 m/s a distance d above the wire.
a) If you consider the moving proton as a "current", in what direction is the magnetic field produced by the moving proton at the location of the long straight wire?
b) In what direction is the resulting force on the long straight wire since it carries a current through the magnetic field produced by the moving proton?