Page 251 - Basic Electrical Engineering

Example 2.54 In the circuit shown in Fig. 2.166 the capacitor is fully

charged when the switch is closed. Calculate the voltage across the fully
charged capacitor. Also calculate the voltage across the capacitor and the
current in the capacitor circuit 0.05 seconds after opening of the switch.

Figure 2.166

Solution:

When the capacitor is fully charged, no current will flow through the
capacitor. The capacitor will be charged to a voltage equal to V . However,
PQ
current, I flowing through the loop PLMQP will be

Voltage across terminals P and Q, i.e., V is
PQ