Question

For $t<0$, the circuit shown in Eigure P4.34 is at steady state. The switch is thrown at $t=0$. Assume: $$ \begin{array}{ll} V_n=17 \mathrm{~V} & V_{32}=11 \mathrm{~V} \\ R_1=14 \mathrm{k} \Omega & R_2=13 \mathrm{k} \Omega \\ R_3=14 \mathrm{k} \Omega & C=70 \mathrm{nF} \end{array} $$ Determine the a. Current $i_C$ through the capacitor for $t>0$. b. Voltage $v_3$ across $R_3$ for $t>0$. c. Time required for $i_C$ and $v_3$ to change by 98 percent of their initial values at $t=0^{+}$. (FIGURE CAN'T COPY) Figure P4.34

   For $t<0$, the circuit shown in Eigure P4.34 is at steady state. The switch is thrown at $t=0$. Assume:
$$
\begin{array}{ll}
V_n=17 \mathrm{~V} & V_{32}=11 \mathrm{~V} \\
R_1=14 \mathrm{k} \Omega & R_2=13 \mathrm{k} \Omega \\
R_3=14 \mathrm{k} \Omega & C=70 \mathrm{nF}
\end{array}
$$
Determine the
a. Current $i_C$ through the capacitor for $t>0$.
b. Voltage $v_3$ across $R_3$ for $t>0$.
c. Time required for $i_C$ and $v_3$ to change by 98 percent of their initial values at $t=0^{+}$.
(FIGURE CAN'T COPY)
Figure P4.34

Principles and Applications of Electrical Engineering

Giorgio Rizzoni,… 7th Edition

Chapter 4, Problem 34

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For $t<0$, the circuit shown in Eigure P4.34 is at steady state. The switch is thrown at $t=0$. Assume: $$ \begin{array}{ll} V_n=17 \mathrm{~V} & V_{32}=11 \mathrm{~V} \\ R_1=14 \mathrm{k} \Omega & R_2=13 \mathrm{k} \Omega \\ R_3=14 \mathrm{k} \Omega & C=70 \mathrm{nF} \end{array} $$ Determine the a. Current $i_C$ through the capacitor for $t>0$. b. Voltage $v_3$ across $R_3$ for $t>0$. c. Time required for $i_C$ and $v_3$ to change by 98 percent of their initial values at $t=0^{+}$. (FIGURE CAN'T COPY) Figure P4.34

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