Question

For the circuit of Figure P5.21, assume that switch $S_2$ is always open, and that switch $S_1$ has been closed for a long time and opens at $t=0$. At $t=t_1=3 \tau$, switch $S_1$ closes again. a. Find the capacitor voltage, $v_c(t)$, at $t=0^{+}$. b. Find an expression for $a_c(t)$ for $t>0$ and sketch the function.

   For the circuit of Figure P5.21, assume that switch $S_2$ is always open, and that switch $S_1$ has been closed for a long time and opens at $t=0$. At $t=t_1=3 \tau$, switch $S_1$ closes again.
a. Find the capacitor voltage, $v_c(t)$, at $t=0^{+}$.
b. Find an expression for $a_c(t)$ for $t>0$ and sketch the function.

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Principles and Applications of Electrical Engineering

Principles and Applications of Electrical Engineering

Giorgio Rizzoni 4th Edition

Chapter 5, Problem 23

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For the circuit of Figure P5.21, assume that switch $S_2$ is always open, and that switch $S_1$ has been closed for a long time and opens at $t=0$. At $t=t_1=3 \tau$, switch $S_1$ closes again. a. Find the capacitor voltage, $v_c(t)$, at $t=0^{+}$. b. Find an expression for $a_c(t)$ for $t>0$ and sketch the function.

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