Thevenin and Norton Theorems

This lecture introduces the Thevenin and Norton theorems, which allow transforming complex circuits into equivalent voltage and current sources, respectively. The instructor demonstrates how to apply these theorems to calculate the equivalent circuits, emphasizing the relationship between current, voltage, and internal resistance. Through examples, the lecture shows how to determine the equivalent source values and internal resistances for both types of circuits. The equivalence between the Thevenin and Norton circuits is highlighted, leading to a practical exercise involving solving circuits using superposition, Thevenin's theorem, and Norton's theorem to ensure a correct solution.