Home power uses alternating current (AC) for efficiency. Direct current (DC) provides consistent power for appliances. AC voltage can be calculated using VAC/√(2) formula
Electric current is the flow of charge particles in a conductor. Current is measured in amperes (A) and calculated as charge divided by time. Ammeter is used to measure current in series with a conductor
DC current is a constant, unidirectional flow of electric charge. Electrons move from negative to positive terminal without direction change. Can flow through both conductors and semiconductors. Symbolized by a straight line
Standard establishes requirements for aircraft electric power at utilization equipment terminals. Ensures compatibility between aircraft electric system, external power and utilization equipment. Excludes electromagnetic interference and voltage spikes
Electric machines convert electromagnetic forces into mechanical power. Generators produce 95% of Earth's electric power, motors consume 60%. Machines can be rotating (rotor) or linear (stator)
DC is one-directional flow of electric charge. Can flow through conductors, semiconductors, insulators, or vacuum. Formerly called galvanic current. Can be converted to AC using rectifiers or vice versa