# Exam1 - Principles of Physics II PHYS 2212-160 Exam#1...

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Principles of Physics II PHYS 2212-160 Exam #1 Lectures 0 – 5 Fall 2010 Name__ ________________ You may use the values k = 8.99x10 9 N m 2 /C 2 , and e = 1.60x10 -19 C, and Gauss’s Law ∫· d = (1/ ε o ) ∫ ρ dV . 1. (5 points) Three charges, +q, +Q, and –Q are placed at the corners of an equilateral triangle as shown. The net force on charge +q due to the other two charges is a. vertically up. b. vertically down. c. zero. d. horizontal to the left. e. horizontal to the right. 2. (5 points) Charges Q 1 = –q and Q 2 = +4q are placed as shown. Of the five positions indicated by the numbers, the one at which the electric field is zero is a. 1 b. 2 c. 3 d. 4 e. 5 3. (5 points) Which of the following best represents the electric field lines around an electric dipole? (Circle the number below the drawing.

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4. (5 points) If non-electric forces are negligible, a negatively charged particle released from rest in an electric field a. moves perpendicular to the field with a constant velocity. b.
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## This note was uploaded on 01/23/2012 for the course PYSICS 2212 taught by Professor Jimguinn during the Spring '11 term at Georgia Perimeter.

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Exam1 - Principles of Physics II PHYS 2212-160 Exam#1...

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