# exam2 - Physics 2306 Name Exam 2 (Arsenault) Student ID...

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Physics 2306 Exam 2 (Arsenault) Spring 2006 Name Student ID Check your (CRN) section number (- 2 points if not checked): 14291 8:00 – 8:50 14288 9:05 – 9:55 14296 10:10 – 11:00 14295 11:15 – 12:05 Students may also use their own two sided 8.5” x 11” formula sheet in addition to the formula sheet that is on the last page of this. 1

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Physics 2306 Exam 2 (Arsenault) Spring 2006 For problems 1-4. The figure below shows equipotential lines with the corresponding potentials labeled (-10V to 20V). The corresponding electric field vectors lie in the plane of the paper. You are to assume that the potential is varying smoothly in the x-y plane. 1. Out of all the labeled points, which point has the electric field with the largest magnitude. 1 A 6 F 2 B 7 G 3 C 8 H 4 D 9 I 5 E 10 J 2. Out of all the labeled points, which point has the electric field with the smallest magnitude. 1 A 6 F 2 B 7 G 3 C 8 H 4 D 9 I 5 E 10 J 2 A B C D E F G H J I -10V 0V 10V 20V y x
Physics 2306 Exam 2 (Arsenault) Spring 2006 3. If the equipotential lines with potentials 10V and 20V intersect the positive x-axis at positions that are 25mm apart, what is the magnitude of the electric field at the point labeled A ? 1 0.25 V/m 6 25 V/m 2 0.4 V/m 7 40 V/m 3 2.5 V/m 8 250 V/m 4 4 V/m 9 400 V/m 5 20 V/m 10 2000 V/m 4. What is the direction of the electric field at the point labeled H ? 1

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## This note was uploaded on 03/19/2008 for the course PHYS 2306 taught by Professor Ykim during the Fall '06 term at Virginia Tech.

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exam2 - Physics 2306 Name Exam 2 (Arsenault) Student ID...

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