Ch 24: Capacitance and Dielectrics
Chapter 24, Problem 24
For the system of capacitors shown in Fig. E24.16
, find the equivalent capacitance (a) between b and c.Verified Solution
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Textbook Question
A spherical capacitor contains a charge of 3.30 nC when connected to a potential difference of 220 V. If its plates are separated by vacuum and the inner radius of the outer shell is 4.00 cm, calculate: (a) the capacitance; (b) the radius of the inner sphere; (c) the electric field just outside the surface of the inner sphere.
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Textbook Question
Figure E24.14 shows a system of four capacitors, where the potential difference across ab is 50.0 V. (b) How much charge is stored by this combination of capacitors?
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Textbook Question
Figure E24.14 shows a system of four capacitors, where the potential difference across ab is 50.0 V. (c) How much charge is stored in each of the 10.0-uF and the 9.0-uF capacitors?
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Textbook Question
In Fig. E24.20 , C1 = 6.00 uF, C2 = 3.00 uF, and C3 = 5.00 uF. The capacitor network is connected to an applied potential Vab. After the charges on the capacitors have reached their final values, the charge on C2 is 30.0 mC. (a) What are the charges on capacitors C1 and C3? (b) What is the applied voltage Vab?
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Textbook Question
A 5.80-uF, parallel-plate, air capacitor has a plate separation of 5.00 mm and is charged to a potential difference of 400 V. Calculate the energy density in the region between the plates, in units of J/m^3.
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Textbook Question
A parallel-plate air capacitor has a capacitance of 920 pF. The charge on each plate is 3.90 uC. (a) What is the potential difference between the plates? (b) If the charge is kept constant, what will be the potential difference if the plate separation is doubled? (c) How much work is required to double the separation?
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