Introduction to Electric Circuits Sixth Edition By Richard C Dorf and James A Svoboda Pdf Here’s the circuit t = 0when the switch is open and the circuit reaches steady state. An inductor at a steady-state dc circuit acts like a brief circuit, thus a brief circuit divides the inductor. The present in that brief circuit is the constant condition inductor current, I(0). Apply KVL into the loop for

Then consider the circuit following the switch closes. This is the circuit = ∞, if the switch is closed and the circuit reaches steady state. The closed switch is modeled as a brief circuit. The combination of resistor along with a brief circuit attached is equal to a brief circuit. Consequently, a brief circuit replaces the change along with the resistor R1.