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p202s04-exam01 - Seat Physics P202 R Heinz/R de Ruyter...

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Seat # Physics P202 R. Heinz/R. de Ruyter EXAM #1 February 5, 2004 6:30–8:30 PM INSTRUCTIONS 1. Please indicate with form (1, 2, 3, or 4) exam you have by marking the appropriate bubble in column “P” of the SPECIAL CODES box on your answer sheet. Your exam is form 1 . 2. Sit in SEAT # given above. 3. DO NOT OPEN THE EXAM UNTIL YOU ARE TOLD TO DO SO. 4. Print your name (last name first) and blacken in the letters on the answer sheet with a #2 pencil. 5. Print your student number (identification number) and blacken in the numbers on the answer sheet with a #2 pencil. 6. Use the fronts and backs of the question sheets for scratch work. Do not use any other scratch sheets. 7. This is a multiple choice exam. Blacken in the answer to each question on the answer sheet. Fill in one and only one answer to each question. 8. Keep your eyes on your own work. 9. You have two hours to complete the exam. When you finish, please show your picture ID as you turn in your answer sheet. Please leave quietly so others are not disturbed. 10. THERE ARE 24 QUESTIONS PLEASE ANSWER ALL OF THEM. THERE IS NO PENALTY FOR GUESSING! This is a closed book, closed note exam! You may use only a calculator and one self-prepared sheet of formulas.
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1. Which of the following procedures could create a charge of +1.0 pC on an object that is originally neutral? A) Add 6 6.25 10 electrons to it. B) Remove 6 6.25 10 electrons and protons from it. C) Add 6 6.25 10 electrons and protons to it. D) Remove 6 6.25 10 protons from it. E) Remove 6 6.25 10 electrons from it. 2. Three point charges are located on the x-axis. The first charge, 1 10 C q , is at 1.0 m x ; the second charge, 2 20 C q , is at the origin; and the third charge, 3 30 C q , is located at 2.0 m x . What is the force on q 2 ? 3. Four point charges are located at the corners of a square,1.0 m by 1.0 m. On each of two diagonally opposite corners are 1.0 µ C charges. On each of the other two
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