For the circuit shown in Figure P5.41, assume that switches S1 and S2 have been held open and closed, respectively, for a long time prior to t = 0. Then, simultaneously at t = 0, S1 closes and S2 opens. Also
assume
R1 = 5?, R2 = 4?, R3 = 3?, R4 = 6?, and
C1 = C2 = 4F.
a. Find the capacitor voltage vC at t = 0+.
b. Find the time constant ? for t > 0.
c. Find vC for all time and sketch the function.
d. Evaluate the ratio vC to vC (?) at each of the following times: t = 0, ?, 2?, 5?, 10? .
Analysis:
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