In the circuit of Figure P5.41, S1 opens at t = 0 and
S2 opens at t = 48 s.
a. Find vC (t = 0+).
b. Find τ for 0 ≤ t ≤ 48 s.
c. Find an expression for vC (t) valid for 0 ≤ t ≤ 48 s.
d. Find τ for t > 48 s.
e. Find an expression for vC (t) valid for t > 48 s.
f. Plot vC (t) for all time.
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