What property of a circuit allows it to store energy in a magnetic field?

Inductance is the property of a circuit that allows it to store energy in a magnetic field. This phenomenon occurs when an electric current flows through a coil or inductor, creating a magnetic field around it. When the current changes, the magnetic field also changes, inducing a voltage in the circuit according to Faraday's law of electromagnetic induction. This stored energy can then be released back into the circuit when required.

In contrast, resistance relates to how much a material opposes the flow of electric current, which does not involve energy storage. Capacitance pertains to the ability of a circuit to store energy in an electric field, typically in capacitors, rather than a magnetic field. Conductance refers to how easily electricity can flow through a material, which again does not involve energy storage mechanisms associated with magnetic fields. Thus, inductance is uniquely responsible for the storage of energy in a magnetic field within circuits.