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Unformatted text preview: Solution for Lab Quiz 11 Potential Difference Solution to Lab Quiz Problem 11.1(Sign of Potential Energy Given Work) Problem: If an external agent does positive work on a system, what happens to the potential energy of the system. Select One of the Following: (a-Answer) Potential energy increases. (b) Potential energy decreases. (c) Potential energy is unchanged because the agent is external to the system. (d) Cant tell. Solution Positive work implies an increase in potential energy. Total Points for Problem: 2 Points Solution to Lab Quiz Problem 11.2(Electric Field and Potential Between Two Charged Plates) 1 Problem: The two conducting plates have net charges of equal magnitude and opposite charge distributed evenly across their sur- faces. Which of the following is true? Select One of the Following: (a) At point 1 the electric potential is lower than it is at point 2 . (b) The electric potential is the same at points 1 and 2 ....
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