A circular loop of wire in the xy plane has a current flow
clockwise through it as viewed from the +z direction. There is a
uniform external magnetic field applied to the loop in the +x
direction. What is the direction of the net force of the magnetic
field on the loop?
a) +y
b) -y
c) -z
d) There is no net force on the loop.
Magnetic fields
a) Can have a net flux out of a closed surface.
b) Can be created by changing electric fields.
c) Always terminate at negative charges.
d) none of the above.
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