Given a 2.25 µF capacitor, a 3.50 µF capacitor, and a 8.50 V battery, find the charge on each capacitor if you connect them in the following ways. (a) in series across the battery 2.25 µF capacitor 3.50 µF capacitor (b) in parallel across the battery 2.25 µF capacitor µC 3.50 µF capacitor 을 일

Given a 2.25 µF capacitor, a 3.50 µF capacitor, and a 8.50 V battery, find the charge on each capacitor if you connect them in the following ways. (a) in series across the battery 2.25 µF capacitor 3.50 µF capacitor (b) in parallel across the battery 2.25 µF capacitor µC 3.50 µF capacitor 을 일

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter8: Capacitance

Section: Chapter Questions

Problem 31P: A 4.00-pF is connected in series with an 8.00-pF capacitor and a 400-V potential difference is...

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A large parallel-plate capacitor is attached to a battery that has terminal potential (Fig. 27.15A). After a period of time, the capacitor stores charge Q so that its top plate is positive and its bottom plate is negative, and the potential difference between the plates is VC = . An I-shaped neutral conductor consisting of two parallel plates connected by a wire is slipped between the plates of the capacitor so that all four plates are parallel (Fig. 27.15B). What are the charges q1, and q2 on the plates of the I-shaped conductor? What is the potential difference VC between the top and bottom plates of the capacitor?
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A Pairs of parallel wires or coaxial cables are two conductors separated by an insulator, so they have a capacitance. For a given cable, the capacitance is independent of the length if the cable is very long. A typical circuit model of a cable is shown in Figure P27.87. It is called a lumped-parameter model and represents how a unit length of the cable behaves. Find the equivalent capacitance of a. one unit length (Fig. P27.87A), b. two unit lengths (Fig. P27.87B), and c. an infinite number of unit lengths (Fig. P27.87C). Hint: For the infinite number of units, adding one more unit at the beginning does not change the equivalent capacitance.
A 10.0-F capacitor is charged to 15.0 V. It is next connected in series with an uncharged 5.00-F capacitor. The series combination is finally connected across a 50.0-V battery as diagrammed in Figure P26.63. Find the new potential differences across the 5.00-F and 10.0-F capacitors after the switch is thrown closed.
A 4.00-pF is connected in series with an 8.00-pF capacitor and a 400-V potential difference is applied across the pair, (a) What is the charge on each capacitor? (b) What is the voltage across each capacitor?
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