A 5-μF, a 7-μF, and an unknown capacitor Cx are connected in parallel between points a and b as shown in the figure. If the equivalent capacitance Cab between a and b is 30 µF, then what is an unknown capacitance Cx? a 5 μF HH HH 7 μF b

A 5-μF, a 7-μF, and an unknown capacitor Cx are connected in parallel between points a and b as shown in the figure. If the equivalent capacitance Cab between a and b is 30 µF, then what is an unknown capacitance Cx? a 5 μF HH HH 7 μF b

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter20: Electric Potential And Capacitance

Section: Chapter Questions

Problem 42P

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Concept explainers

Combination of Capacitors

The connection of capacitors can be established in a circuit in two ways.

Question

A 5-µF, a 7-μF, and an unknown capacitor Cx are connected in parallel between points a and b as
shown in the figure. If the equivalent capacitance Cab between a and b is 30 µF, then what is an
unknown capacitance Cx?
a
1.5 μF
O 10 μF
O 5.8 μF
Ο 18 μF
5 μF
HH
北
HH
7 μF
b

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