Circuit Response Analysis

The flow of current in the circuit branches and drop of voltage across circuit elements depend on their behavior and their ability to store energy. For instance, the voltage drop across a resistor is in phase with its current passing through. But that is not the same in a capacitor or an inductor. This makes the circuit KVL and KCL equations integrodifferential equations. The order of these equations depends on the number of energy-storing elements. In this chapter, the circuit elements are introduced and their equations are discussed. The order of a circuit is discussed, and responses of first- and second-order circuits to their initial condition and to external sources are analyzed.