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This print-out should have 20 questions. Multiple-choice questions may continue on the next column or page nd all choices before answering. 001 (part 1 of4)

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This print-out should have 20 questions. Multiple-choice questions may continue on the next column or page nd all choices before answering. 001 (part 1 of4) Locations A, B, and C are in a region of uniform electric eld, as shown in the diagran'l below. A .3: i2 \\ C Location A is at FA 2 (0.7,0,0> m. Location B is at F5 = (0.5,0,0) m. In the region the electric eld has the value 4 E = (950, 470, 0) N/C. For a path starting at B and ending at A. the displacen'lent vector AI? will be of the form A? : (Am, 0, 0). Find ALI}. Answer in units of In. 002 (part 2 of4) _ Now nd the change in electric potential along this path. Answer in units of V. 003 (part 3 of 4) Find the change in potential energy when a proton (1013, : 1.7 x 1027 kg and 1gp : 1.6 X 1019 C) moves from B to A. Answer in units of J. 004 (part 4 of 4) Find the change in potential energy when an electron (rm,- 2 9.1 X 1031 kg and qt: = 1.6 X 1019 C) moves from B to A. Answer in units of .l. 005 It takes 110 J of work to move 1.1 C of charge from the negative plate to the positive plate of a parallel plate capacitor. W'hat voltage difference exists between the plates? Answer in units of V. 006 Two parallel conducting plates are connected to a constant voltage source. The magni- tude of the electric eld between the plates is 1526 N / C. If the voltage is doubled and the distance 1 between the plates is reduced to F the original distance, what is the n'iagnitude of the new electric eld? Answer in units of N/C. 007 (part 1 of 2) A deuteron (a nucleus that consists of one pro- ton and one neutron) is accelerated through a 3.69 kV potential di'crence. How much kinetic energy does it gain? The mass of a proton is 1.6726? x 1027 kg, the mass of a neutron 1.67493 X 1027 kg and the charge on an electron 1.60218 X 1019 C. Answer in units of J. 008 (part 2 of 2) . What is its nal speed if it starts from rest? Answer in units of m/s. 009 Consider the setup where the potential func- tion is given by: V 2 43:2 + 23; 522. Find 5;; at the point: (2 m, 2 m, 5.8 In). Answer in units of N / C. 010 2 7. Ib, IIb, IIIb 5: X 8. Ib, IIa, IIIa 011 The plots in Figure 1 and Figure 2 show the X electric potential energy for a system of two interacting objects as a function r, which is the distance between the two objects. Figure Figure above shows a portion of long, neg- atively charged rod. You need to determine the potential difference VA - VB due to the Uel Uel charged rod. Use the convention that up is along the +y direction. Consider the following statements: Figure 1 Figure 2 Ia. Direction of the path is along the ty direction Figure 1 represents Ib. Direction of the path is along the -y Ia. A two-proton system direction Ib. A two-neutron system Ic. A proton-electron system Ila. The sign of VA - VB is positive IIb. The sign of VA - VB is negative Figure 2 represents Ila. A two-proton system Now bring a test charge q from A to B. IIb. A two-neutron system Consider the following statements: IIc. A proton-electron system IIIa. The sign of the potential difference VA - VB due to the rod depends on the sign What system is represented by each curve? of the test charge q. IIIb. The sign of the potential difference 1. Ic, IIa VA - VB due to the rod does not depend on the sign of the test charge q 2. Ib, IIb Choose the correct choice: 3. Ia, IIb 1. Ia, IIb, IIIa 4. Ia, IIa 2. Ia, IIa, IIIa 5. Ib, IIc 3. Ia, IIa, IIIb 6. Ib, IIa 4. Ib, IIb, IIIa 7. Ic, IIb 5. Ia, IIb, IIIb 8. Ic, IIc 6. Ib, IIa, IIIb 9. Ia, IIc3 012 (part 1 of 3) 014 (part 3 of 3) Consider a long, uniformly charged, cylindric What is the relationship between the poten- cal insulator of radius R and charge density tials Vr, and VR? 1.2 AC/m3. 1. None of these 2. Vn = VR R- 3. Vri > VR 1.2 cm 4. Vri

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