(796) Problem 4: Three capacitors are connected in series as shown in the figure
ID: 1631108 • Letter: #
Question
(796) Problem 4: Three capacitors are connected in series as shown in the figure The capacitances are Cl-8, 1 ur, and C,-46 is unknown, and the charge stored in each capacitor is Q = 6.5 C ©theexpertta.com 20% Part (a) Express the capacitance C of a capacitor in terms of charge O and voltage on it. Grade Summary Deductions Potential 0% 100% 78 9 Submissions Attempts remaining: 20 (000 per attempt) detailed view Submit I give up! Hints: 0% deduction per hint. Hint remaining 1 Feedback: 0% deduction per feedback. - 20% Part (b) Apply the above formula to capacitor C, to find an expression for the potential difference across it 20% Part (c) Express the potential difference V12 through potentials V, and V2 where V1 and V2 are the potentials measured in the wires 1 and 2, respectively, relative to the negative side of the battery - 20% Part (d) Calculate 72 in V given V,-9 V 20% Part (e) Repeat the above procedure for capacitor C2 and calculate the potential at point 3, , in VExplanation / Answer
4. (A) Q = C deltaV
C = Q / deltaV
(b) V12 = Q / C1
(c) V1 - V2 = V12
(d) V12 = (6.5 uC) / (8.1 uF) = 0.80
V12 = V1 - V2
V2 = 8.20 Volt
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