Practice Exam 2 - Spring 2007

# Practice Exam 2 - Spring 2007 - PH2200 EXAM II INSTRUCTIONS...

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PH2200 EXAM II SPRING 2007 The following information applies to the first two questions. A pack of 100-dollar bills is charged so that each bill has a charge of 0.0100 μ C. The pack is suspended by an insulating thread inside a closed, neutral, metal safe. No charge can flow between the bills and the safe or between the safe and its surroundings. A burglar knows that there is no net electrical charge on the safe, but the charge on the outer surface of the safe has a magnitude of 4.00 μ C 1. What is the charge on the inner surface of the safe? (A) 4.00 μ C (B) 0.0100 μ C (C) 0 C (D) +0.0100 μ C (E) +4.00 μ C 2. How much money is in the safe? (A) \$10,000 (B) \$20,000 (C) \$40,000 (D) \$80,000 (E) \$160,000 3 . Which graph best describes the electric field strength E versus distance r from the center of a solid, charged conducting sphere in electrostatic equilibrium? R is the radius of the sphere.
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## This note was uploaded on 10/31/2011 for the course EE 101 taught by Professor Gibbons during the Spring '09 term at Michigan State University.

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Practice Exam 2 - Spring 2007 - PH2200 EXAM II INSTRUCTIONS...

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