Magnetic force on proton near wire · PhysicsBowl 2013 #30
Physics · electromagnetism
Problem
Electrons flow to the left in a wire as shown. For the proton moving toward the top of the page at the instant shown, what is the direction of the magnetic force on the proton?
(A) To the left
(B) To the right
(C) Into the plane of the page
(D) Out of the plane of the page
(E) There is no force