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PracticeExam1

# PracticeExam1 - Physics 219 Practice Exam 1 Summer 2004...

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Physics 219 Practice Exam 1 Summer 2004 Multiple Choice (100 points total) The following 18 multiple choice questions are to be answered on the OP-SCAN sheet with a pencil. There is no penalty for guessing and each correct answer is worth 5.56 points. 1. Three point charges are located on the x-axis. The first charge, q 1 = 10 μ C, is at x = -1.0 m. The second charge, q 2 = 20 μ C, is at the origin. The third charge, q 3 = - 30 μ C, is located at x = 2.0 m. What is the force on q 2 ? (a) 1.65 N in the negative x- direction (b) 3.15 N in the positive x- direction (c) 1.50 N in the negative x- direction (d) 4.80 N in the positive x- direction (e) 4.65 N in the negative x- direction 2. The electric field has a magnitude of 3.0 N/m at a distance of 60 cm from a point charge. What is the charge? 3. An electron traveling horizontally from North to South enters a region where a uniform electric field is directed downward. What is the direction of the electric force exerted on the electron once it has entered the field? 1

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Physics 219 Practice Exam 1 Summer 2004 4. A solid conducting sphere or radius A carries an excess charge of +6 μ C. This sphere is located at the center of a hollow conducting sphere with an
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