The electron beam at the top of the photograph in Figure
Chapter 19, Problem 19.33(choose chapter or problem)
The electron beam at the top of the photograph in Figure CQ19.17 is projected to the right. The beam defl ects downward in the presence of a magnetic fi eld produced by a pair of current-carrying coils. (a) What is the direction of the magnetic fi eld? (b) What would happen to the beam if the magnetic fi eld were reversed in direction?
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