question archive Problem 23

Problem 23

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Problem 23.43 Consider the circuit shown in (Figure 1). Assume E = 19 V Figure

A. What is the charge on 3.0 μF capacitor?

B. What is the charge on 4.0 μF capacitor?

C. What is the charge on 6.0 μF capacitor?

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a)

charge through 3 uF

q(3) = CV = 3 * 19 = 57 uC

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b)

net capacitance of 4 and 6 uF

C = 4* 6 / ( 4 + 6) = 2.4 uF

charge through 4uF

q(4) = 2.4* 19 = 45.6 uC

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c)

q(6) = q(4) = 45.6 uC