#electric current

• Ampere — The fundamental base unit in the International System of Units (SI) for electrical current intensity, defined by taking the fixed numerical value of the elementary electron charge. One ampere (symbol: A) represents the flow of electric charge equivalent to one coulomb per second passing through a cross-section of an electrical conductor.
• Amperage — A term used in common or informal language to designate the intensity of an electric current, expressed in amperes. Although theoretical physics and official metrology prefer the phrase 'electric current intensity', the word is standardized in industry and practice to indicate the load capacity of fuses, circuits, or chargers.
• Self-inductance — A scalar physical quantity characterizing the property of an electric circuit to produce its own magnetic flux when traversed by a variable electric current; self-inductance. Numerically, it equals the ratio of the total magnetic flux passing through the surface bounded by the circuit to the intensity of the current producing this flux, its International System unit being the henry (H).
• Self-induction — An electromagnetic phenomenon consisting of the production of an induced electromotive force within an electric circuit due to the variation of the electric current intensity flowing through that circuit; self-induction. According to Lenz's law, the resulting self-induction current has a direction that opposes the variation of the main current, manifesting as electromagnetic inertia when circuits are established or interrupted.