Question

I am just confuse at what equation to use provided in the textbook which one to use. C_1 and C_2 are parallel and C_3 and C_4 are series right? Soooo what should i use from there?

is 1S ti 2 te a Figure E24.17 C1 C2 C4

Answer 1

The equivalent capacitance of the capacitors that are connected in series is, 2C 2 This is in parallel with capacitance C3. Therefore, the equivalent capacitance of the combination 1s, This is in series with C4. The effective capacitance between a and b is, C+C Thus, the charge on the effective combination is (2.4) (28) 67.2 uC The same charge is observed across the parallel combination and the fourth capacitor Thus, the potential drop across the parallel combination is, at 67.2 11.2V C,40 C) The same potential is observed across the series combination and the third capacitor The charge across the series combination is, - 22.4uC The same charge is observed across the resistors in the series combination. The charge on the third capacitor is, ,ca(1 1.2)(4)-44.8 C Thus, the charge on the four capacitors is 22AuC. 22AuC. 44.8μC. 67.2pC The potential drop across the first capacitor is, 2 224 C 4 I =-= 5.6V The potential drop across the second capacitor is, O 22.4 C 4 25.6V The potential drop across the third capacitor is, 44.8 C 4 The potential drop across the fourth capacitor is, 67.2 C 4