hree capacitors are connected as indicated in the figure below. a) If C1 = 7µF, what value must C2 have so that the total equivalent capacitance is equal to C2? b) If a voltage of 300Vdc is applied as indicated in the figure, find the charge and voltage of each capacitor.

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Author:Raymond A. Serway, Chris Vuille
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Three capacitors are connected as indicated in the figure below.

  1. a) If C1 = 7µF, what value must C2 have so that the total equivalent capacitance is equal to C2?
  2. b) If a voltage of 300Vdc is applied as indicated in the figure, find the charge and voltage of each capacitor.
C1
+300V
C1
C2
Transcribed Image Text:C1 +300V C1 C2
Expert Solution
Step 1

Given,

A circuit with three capacitor and battery 

Step 2

(a)

The equivalent capacitance is 

Ceq=C1+C2*C1C1+C2+C1C2=7+C2714+C214C2+C22=49+7C2C22+7C2-49=0Solving this equation C2=-11.33 and 4.33 μFTaking C2=4.33 μF

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