Practice Exam 3 - Spring 2007

Practice Exam 3 - Spring 2007 - PH2200 EXAM III...

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PH2200 EXAM III SPRING 2007 INSTRUCTIONS 1. Remove the Score Sheet from the exam booklet. 2. Using a #2 pencil, in the left-hand column entitled Student Enrollment Sheet, fill in the following information: I.D. Number enter your M-number, but replace the letter M with the number 9 Name enter your MTU email address without the @mtu.edu Phone Number leave blank 3. With the exception of the first 28 answers on the Score Sheet, all remaining fields should be left blank. 4. Be sure to fill in the circles completely and avoid stray marks on the form. 5. This a ninety minute exam. 6. Please cover your Score Sheet at all times. 7. This is a closed book exam. You may use the PH2200 Formula Sheet that is attached to this exam. The next to last sheet of paper is blank and may be used as scratch paper. You may find it convenient to rip the formula sheet and scratch paper from the exam booklet. 8. Graphing calculators are permitted, but equations may not be stored in calculators, nor may calculators be exchanged. 9. Cell phones should be turned off and may not be used during the exam period. 10. Assume all numerical data supplied with the problems have three significant figure accuracy, unless explicitly identified otherwise. 11. This exam consists of a total of 28 questions. Each question has a single correct answer and is worth five points. The total number of points available on the exam is 140. 12. An announcement will be made when ten minutes remain. Please remain seated after the announcement is made until the Score Sheets are collected. 13. If you have any questions during the exam, please raise your hand and wait for assistance. 14. Please turn in only your Score Sheet. You may keep the exam booklet, formula sheet, and scratch paper. Please Sit in Seat Number _____________________________
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PH2200 EXAM III SPRING 2007 ( ) V V Δ ( ) A I 0 50 100 1. The figure to the right is a current versus potential difference graph for 2 1 0 a material. What is the material’s resistance? (A) 10 .0 Ω (B) 20.0 Ω (C) 30.0 Ω (D) 40.0 Ω (E) 50.0 Ω 2. You are given 3 identical resistors. How many combinations having different resistances can you create using all three resistors? (A) 2 (B) 3 (C) 4 (D) 5 (E) 6 3. An alkaline flashlight battery has an emf of 1.50 V and an internal resistance of 0.120 . What is the electric potential difference across the terminals of the battery if it is delivering a current of 1.00 A? (A) 1.34 V (B) 1.38 V (C) 1.42 V (D) 1.46 V (E) 1.50 V The following information applies to the next two questions. The figure to the right shows five identical bulbs connected to an ideal battery. Initially, all the bulbs are glowing.
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Practice Exam 3 - Spring 2007 - PH2200 EXAM III...

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