16 Pages

# ch28

Course Number: PHYS 13/14, Spring 2008

College/University: Dartmouth

Word Count: 8059

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CHAPTER The Magnetic Field 28 1* When a cathode-ray tube is placed horizontally in a magnetic field that is directed vertically upward, the electrons emitted from the cathode follow one of the dashed paths to the face of the tube in Figure 28-30. The correct path is ____. (a) 1 (b) 2 (c) 3 (d) 4 (e) 5 (b) 2 Why not define B to be in the direction of F, as we do for E? One cannot define the direction of the...

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