Magnetic Force on Moving Electron · PhysicsBowl 2010 #26
Physics · electromagnetism
Problem
An electron moving in the plane of the page at an angle of 30° to the horizontal enters a region with a constant magnetic field directed horizontally in the plane of the page as shown. At the instant that the electron enters the magnetic field, which best describes the direction of the resulting magnetic force on the electron?
[Figure: Electron trajectory and magnetic field diagram]
(A) To the right (B) To the left (C) In a direction not listed here (D) Into the plane of the page (E) Out of the plane of the page