PHYS-2101 problem sets, Exercises of Physics

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64. 60. 53. 62. ee INT An isolated 5.0 uF parallel-plate capacitor has 4.0 mC of charge. An external force changes the distance between the electrodes until the capacitance is 2.0 uF. How much work is done by the external force? * Six identical capacitors with capacitance C are connected as shown in Figure P26.608. a. What is the equivalent capacitance of these six capacitors? b. What is the potential difference between points a and b? Figure P26.60 °° Two 2.0 cm x 2.0 cm metal electrodes are spaced 1.0 mm apart and connected by wires to the terminals of a 9.0 V battery. a. What are the charge on each electrode and the potential difference between them? The wires are disconnected, and insulated handles are used to pull the plates apart to a new spacing of 2.0 mm. b. What are the charge on each electrode and the potential difference between them? ¢e A battery with an emf of 60 V is connected to the two capacitors shown in Figure P26.628. Afterward, the charge on capacitor 2 is 450 wC. What is the capacitance of capacitor 2? Figure P26.62 57. 56. © What are the charge on and the potential difference across each capacitor in Figure P26.570? Figure P26.57 «© What are the charge on and the potential difference across each capacitor in Figure P26.565? Figure P26.56 i C= 12aF