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Chapter 26: Q. 27 (page 738)

What is the equivalent capacitance of the three capacitors in Figure EX26.27?

Short Answer

Expert verified

The equivalent capacitance of the three capacitors is7.5渭F.

Step by step solution

01

Given information

We need to find that the equivalent capacitance of thre capacitors.

02

Simplify 

Consider that the capacitance of the two capacitors connected in parallel, to the left-bottom: their common capacitance will be

Cb=20+10=30渭F.

From this, our problem is simplified to a 30渭Fcapacitor connected in series with a 7.5渭Fone. That means, the total capacitance is

C=30路10-6路10路10-630路10-6+10路10-6=7.5渭F

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