What is the formula for calculating inductive reactance?

The formula for calculating inductive reactance is expressed as ( X_L = 2\pi fL ). This equation indicates that inductive reactance (denoted as ( X_L )) is directly proportional to both the frequency of the AC signal (f, measured in hertz) and the inductance (L, measured in henries).

In practical terms, this means that as the frequency of the alternating current increases, the inductive reactance also increases, making it more difficult for the current to flow through the inductor. This aligns with the nature of inductors; they resist changes in current due to the magnetic fields generated around them.

Understanding this relationship helps in circuit analysis involving inductors, particularly in AC circuits where frequency plays a vital role in the overall impedance. The ability to calculate inductive reactance accurately allows linemen and electricians to design and troubleshoot electrical systems effectively.