#alternating current

• Admittance element — An element, circuit, or quantity characterized by admittance; a component or medium capable of allowing the passage of alternating electrical current or energy flux in a physical system. As a derived quantity, it is the inverse of impedance and measures the ease with which an electric circuit conducts current, heavily used in power engineering calculations and network design.
• Admittance-based — Possessing the characteristics of admittance; facilitating the conduction of alternating electrical current or energy flux transfer within a circuit. It represents the feminine form of the adjective 'admitant', specifically used to describe physical quantities, mathematical matrices, or structural components capable of reducing the overall impedance in a complex technical system.
• Alternative — Offering the possibility to choose between two or more solutions, paths, or possibilities; occurring by alternation, succeeding one another periodically (e.g., alternating current). As an adverb, it expresses the execution of facts by turns, successively.
• Autotransformer — A special type of electrical transformer possessing a single winding on a common magnetic core, structurally serving as both primary and secondary windings through intermediate taps. This electrotechnical device is used for step-by-step or fixed variation of alternating voltage, offering high efficiency, small dimensions, and material savings compared to classic transformers with two galvanically isolated windings.