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Unformatted text preview: Version One Homework 2 Savrasov 39821 Apr 16, 2007 1 This print-out should have 7 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. The due time is Central time. Point Charge in a Cube 24:02, trigonometry, numeric, > 1 min, nor- mal. 001 (part 1 of 1) 2 points A charge of 0 . 8 nC is placed at the center of a cube that measures 4 m along each edge. What is the electric flux through one face of the cube? Correct answer: 15 . 0659 N m 2 / C. Explanation: Let : q = 0 . 8 nC = 8 10- 10 C and a = 4 m . By Gauss law, c = I ~ E d ~ A = q en . By symmetry, the electric flux through each face of the cube is equal, so = q 6 = 8 10- 10 C 6(8 . 85 10- 12 C 2 / N m 2 ) = 15 . 0659 N m 2 / C . keywords: Infinite Line of Charge 02 24:05, calculus, numeric, > 1 min, normal. 002 (part 1 of 1) 2 points Consider an infinitely long line of charge hav- ing uniform charge per unit length 7 C / m. Determine the total electric flux through a closed right circular cylinder of length 7 m and radius 71 m that is parallel to the line charge, if the distance between the axis of the cylinder and the line of charge is 7 m....
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This note was uploaded on 03/24/2011 for the course PHYS 13843 taught by Professor Dr.andygavrin during the Spring '10 term at IUPUI.
- Spring '10