WHAT iS R.L series circuit?

An R.L series circuit is an electrical circuit that consists of a resistor (R) and an inductor (L) connected in series. In this configuration, the current flowing through the circuit experiences both resistive and inductive effects, which can influence the overall impedance and phase of the circuit. The behavior of an R.L circuit is characterized by its time constant, which determines how quickly the circuit responds to changes in voltage. This type of circuit is commonly used in applications involving alternating current (AC) and in filtering or timing circuits.