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20_Ch 15 College Physics ProblemCH15 Electric Forces and Electric Fields

20_Ch 15 College Physics ProblemCH15 Electric Forces and Electric Fields

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20 CHAPTER 15 15.32 (a) In the sketch for (a) at the right, note that there are no lines inside the sphere. On the outside of the sphere, the field lines are uniformly spaced and radially outward. (b) In the sketch for (b) above, note that the lines are perpendicular to the surface at the points where they emerge. They should also be symmetrical about the symmetry axes of the cube. The field is zero inside the cube. 15.33 (a) Zero net charge on each surface of the sphere. (b) The negative charge lowered into the sphere repels 5 C to the outside µ surface, and leaves 5 C on the inside µ + surface of the sphere. (c) The negative charge lowered inside the sphere neutralizes the inner surface, leaving
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