What is inductance?

Inductance is defined as the property of a conductor that induces an electromotive force (emf) when there is a change in current flowing through it. This phenomenon occurs due to the magnetic field created around a conductor when electric current passes through it. If the current changes, the magnetic field also changes, which results in a change in magnetic flux. According to Faraday's law of electromagnetic induction, this changing magnetic flux induces an emf in the conductor itself and can affect nearby circuits, leading to various practical applications such as transformers and inductors in electrical circuits.

The other options presented do not accurately describe inductance. The ability to resist electrical current refers more to resistance rather than inductance. The measure of voltage in a circuit pertains to electric potential difference, while the charge stored in a capacitor relates to capacitance. Each of these describes different aspects of electrical behavior, but they do not encapsulate the essence of inductance, which is specifically tied to the relationship between current change and induced emf.