👉 Impedance is a physical property of an electrical or electronic device that measures the opposition to the flow of electric current. It represents the ratio of the impedance of a circuit to its resistance, and it is often represented as $Z=\frac{1}{R}$ in circuits. This means that the larger the value of $Z$, the greater the total resistance of the circuit. Impedance can be used to analyze electrical circuits, including power systems, where it's important to understand how voltage