Inductance is a property of electrical circuits that describes how a coil of wire, or inductor, can store energy in a magnetic field when an electric current flows through it. When the current changes, the magnetic field also changes, inducing a voltage that opposes the change in current. This phenomenon is known as Lenz's Law. Inductance is measured in henries (H) and is an important concept in electrical engineering and electronics. It plays a crucial role in the functioning of devices like transformers, motors, and inductors, helping to manage and control electrical energy in various applications.