Lecture
This lecture covers the step response of RLC circuits, analyzing the transitional regimes and different cases based on the circuit parameters. It then transitions to the chapter on quadrupoles, explaining their interconnection, representative matrices, and impedance matrix. The lecture delves into the definition of quadrupoles, their types, and examples of passive quadrupoles. It also discusses the impedance matrix in sinusoidal regime and the determination of its parameters. The concept of reciprocal quadrupoles and the Thévenin equivalent diagram in a circuit are also explored, along with the input impedance and the representation of sources and loads.