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WM3Problems

# WM3Problems - WM3 CHAPTER CHAPTER CHAPTER 24 25 QUESTION 13...

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WM3 : CHAPTER 22, QUESTION 13 CHAPTER 23, QUESTIONS 3, 8, 16 CHAPTER 24, QUESTIONS 3, 12, 13 CHAPTER 25, QUESTIONS 3, 6, 12 CHAPTER 23, PROBLEMS 5, 30 CHAPTER 24, PROBLEMS 7, 42 CHAPTER 25, PROBLEMS 1, 10, 21 QUESTIONS: Q22-13) A point charge q is placed at the center of the cavity of a thin metal shell which is neutral. Will a charge Q placed outside the shell feel an electric force? Explain. Q23-3) State clearly the difference between (a) electric potential and electric field, (b) electric potential and electric potential energy. Q23-8) Can two equipotential lines cross? Explain. Q23-16) If you know V at a point in space, can you calculate E at that point? If you know E at a point, can you calculate V at that point? If not, what else must be known in each case? Q24-3) Suppose one of the plates of a parallel-plate capacitor was moved so that the area of overlap was reduced by half, but they are still parallel. How would this affect the capacitance? Q24-12) An isolated charged capacitor has horizontal plates. If a thin dielectric is inserted a short way between the plates, Fig. 24-16, how will it move when it is then

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