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19. Two-point charges with values of 3.4 uC and 6.6 C are separated by 0.20 m. What is the electrical potential energy of this two-charge system? A. 0.34 J B. -0.75 J C. 1.0J D. -3.4 J

19. Two-point charges with values of 3.4 uC and 6.6 C are separated by 0.20 m. What is the electrical potential energy of this two-charge system? A. 0.34 J B. -0.75 J C. 1.0J D. -3.4 J

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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20. When an electron (q = -1.6 x 10-19 C) moves 0.10 m along the direction of an electric field 19. Two-point charges with values of 3.4 uC and 6.6 iC are separated by 0.20 m. What is the electrical potential energy of this two-charge system? A. 0.34 J B. -0.75 J C. 1.0J D. -3.4 J with a strength of 3.0 N/C, what is the magnitude of the potentia! difference between the electron's initial and final points? A. 4.8 x 10-19 V B. 0.30 V C. 0.03 V D. 3.0 x 10' V 21. At what distance from a point charge of 8.0 uC would the electric pocential be 4.2 x 10 V? A. 0.58 m 22. Charge-build up between the plates of a capacitor stops when A. there is no net charge on the plates. B. the charge on both plates is the same. C. unequal amounts of charge accurulate on the plate. D. the potential difference between the plates is equal to the potertial difference between the terminals of the battery. 23. When comparing the net charge of a charged capacitor with the net charge of the same capacitor when it is uncharged, the net charge is A. greater in the charged capacitor. B. less in charged capacitor. C. equal in both capacitors. D. greater or less in the charged capacitor, but aever equal. 24. What will happen when a capacitor discharges? A. It must be attached to a battery. B. It cannot be comnected to a material that conducts. C. Charges move back from one plate to ancther through the circuit until both plates are uncharged. D. charges move from one plate to another until equal and opposite charges accumulate on the plates. 25. A 0.25 µF capacitor is connected to a 9.0-V battery. What is the charge on the capacitor? A. 1.2 x 10-12 C В. 2.2 х 106 С 26. A capacitor consists of two metal plates, stored on the other. B. 0,76 m C. 1.7 m D. 2.9 m C 2.8 A 108 C D. 36 x 10 C is stored on one plate and is A. negative charge; positive charge B. potential energy; kinetic energy C. potential difference; internal resistance D. residual charge; induced charge 27. Increasing the separation of the two charged parallei plate of a capacitor when they are disconnected from a battery will produce what effect on the capacitor? A. It will increase the charge. B. It will decrease the charge. 28. Increasing the potential difference across the two plates of a capacitor will produce what effect on the capacitor? A. It will increase the charge. B. It will decrease the charge. 29. What is the capacitance of a parallel-plate capacitor uade of two squave aluninum plates that are 4.0 cm in length on each side and are separai ed by 5.0 mm? (eo = 8.85 x 10-12 C/Nom?) A. 2.8 x 10-10 F В. 1.0 х 106F C. it will increase the capecitance. D. It will decrease the capacitance. C. It wil increase the capacitance. D.t will decrease the capacitance. C. 2.8 x 1012 F D 2.0 x 10 F
Transcribed Image Text:20. When an electron (q = -1.6 x 10-19 C) moves 0.10 m along the direction of an electric field 19. Two-point charges with values of 3.4 uC and 6.6 iC are separated by 0.20 m. What is the electrical potential energy of this two-charge system? A. 0.34 J B. -0.75 J C. 1.0J D. -3.4 J with a strength of 3.0 N/C, what is the magnitude of the potentia! difference between the electron's initial and final points? A. 4.8 x 10-19 V B. 0.30 V C. 0.03 V D. 3.0 x 10' V 21. At what distance from a point charge of 8.0 uC would the electric pocential be 4.2 x 10 V? A. 0.58 m 22. Charge-build up between the plates of a capacitor stops when A. there is no net charge on the plates. B. the charge on both plates is the same. C. unequal amounts of charge accurulate on the plate. D. the potential difference between the plates is equal to the potertial difference between the terminals of the battery. 23. When comparing the net charge of a charged capacitor with the net charge of the same capacitor when it is uncharged, the net charge is A. greater in the charged capacitor. B. less in charged capacitor. C. equal in both capacitors. D. greater or less in the charged capacitor, but aever equal. 24. What will happen when a capacitor discharges? A. It must be attached to a battery. B. It cannot be comnected to a material that conducts. C. Charges move back from one plate to ancther through the circuit until both plates are uncharged. D. charges move from one plate to another until equal and opposite charges accumulate on the plates. 25. A 0.25 µF capacitor is connected to a 9.0-V battery. What is the charge on the capacitor? A. 1.2 x 10-12 C В. 2.2 х 106 С 26. A capacitor consists of two metal plates, stored on the other. B. 0,76 m C. 1.7 m D. 2.9 m C 2.8 A 108 C D. 36 x 10 C is stored on one plate and is A. negative charge; positive charge B. potential energy; kinetic energy C. potential difference; internal resistance D. residual charge; induced charge 27. Increasing the separation of the two charged parallei plate of a capacitor when they are disconnected from a battery will produce what effect on the capacitor? A. It will increase the charge. B. It will decrease the charge. 28. Increasing the potential difference across the two plates of a capacitor will produce what effect on the capacitor? A. It will increase the charge. B. It will decrease the charge. 29. What is the capacitance of a parallel-plate capacitor uade of two squave aluninum plates that are 4.0 cm in length on each side and are separai ed by 5.0 mm? (eo = 8.85 x 10-12 C/Nom?) A. 2.8 x 10-10 F В. 1.0 х 106F C. it will increase the capecitance. D. It will decrease the capacitance. C. It wil increase the capacitance. D.t will decrease the capacitance. C. 2.8 x 1012 F D 2.0 x 10 F
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