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Unformatted text preview: yoon (jey283) ch20-h1 turner (56545) 1 This print-out should have 22 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points Which of the following statements about the discharging of a capacitor through a light bulb are correct? List all that apply separated by commas. If none are true, type none. A. The fringe field of the capacitor decreases as the charge on the capacitor plates de- creases. B. Electrons flow across the gap between the plates of the capacitor, thus reducing the charge on the capacitor. C. The electric field at a location inside the wire is due to charge on the surface of the wires and charge on the plates of the capacitor. D. Electrons in the wires flow away from the negative plate toward the positive plate, reducing the charge on the plates. 002 (part 1 of 6) 10.0 points A particular capacitor is initially charged. Then a high-resistance Nichrome wire is con- nected between the plates of the capacitor, as shown in Figure 1. The needle of a compass placed under the wire deflects 20 o to the east as soon as the connection is made. After 60 seconds the compass needle no longer deflects. (I) i i i (II) i i i (III) Which of the diagrams in Figure 1 best in- dicates the electron current at three locations in this circuit: 0.01 seconds after the circuit is connected? 1. Figure I 2. Figure III 3. Figure II 003 (part 2 of 6) 10.0 points 15 seconds after the ciruit is connected?...
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This note was uploaded on 10/19/2011 for the course PHY 56545 taught by Professor Turner,j during the Fall '11 term at University of Texas at Austin.
- Fall '11