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sugz
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Homework Statement
Question is attached below
Homework Equations
v(t) =v(infinity) + [v(t0)-v(infinity)]e^[-(t-t0)]
The Attempt at a Solution
For t<0, you get the circuit where it is only Rt, R, and C, but in dc circuits, the capacitor is an open circuit, does this mean v(t0) =0?
For t>0 the middle Rt is removed and you get a circuit consisting of Vt, Rt, R and C. To find Rth, you short circuit Vt and open circuit C, so Req= Rt+R. So time constant is C(Rt+R). To find v(infinity), we open circuit the the capacitator, but how do you solve for v(infinity)?