- Industry: Aviation
- Number of terms: 16387
- Number of blossaries: 0
- Company Profile:
Aviation Supplies & Academics, Inc. (ASA) develops and markets aviation supplies, software, and books for pilots, flight instructors, flight engineers, airline professionals, air traffic controllers, flight attendants, aviation technicians and enthusiasts. Established in 1947, ASA also provides ...
The drop in voltage or electrical pressure caused by current flowing through a resistance. A voltage drop is called an IR (current times resistance) drop.
Industry:Aviation
The ease with which alternating current can flow in a circuit. Admittance (Y) is the reciprocal of impedance (Y = 1/Z) and is expressed in siemens. It was formerly expressed in mhos (ohm spelled backward).
Industry:Aviation
The edge of a moving object that reaches a point in space or time ahead of the rest of the object. In an airplane wing or a helicopter rotor, the leading edge is the part of the wing or rotor the moving air touches first. In a pulse of electrical energy, the leading edge is the first part of the pulse that moves away from the quiescent, or at-rest, state.
Industry:Aviation
The electrical characteristic of a conductor which causes a voltage to be produced when it is cut, or crossed, by lines of magnetic flux. The basic unit of inductance is the henry.
Industry:Aviation
The electrical charge left on the plates of a capacitor after its initial discharge.
Industry:Aviation
The electrical charge on a body caused by an accumulation of electrons on one part of the body and a deficiency of electrons on another part. The part having the excess of electrons has a negative charge, and the part with the deficiency of electrons has a positive charge.
Industry:Aviation
The electrical force caused by a deficiency of electrons in one location and an excess of electrons in another. Electrical potential is measured in volts.
Industry:Aviation
The electrical generation device that has replaced the generator on practically all modern automobiles and light airplanes.
Excitation current from the aircraft battery flows through the voltage regulator into the rotor coil through brushes and slip rings to produce a multiple-pole rotating magnetic field. This rotating field cuts across the three-phase output windings in the stator to produce an alternating current whose amount is determined by the alternator speed and the amount of excitation current supplied by the voltage regulator. A six-diode, three-phase rectifier changes the AC into DC before it leaves the alternator.
Industry:Aviation
The electrical law explaining induced current. Lenz’s law states that the current induced in a conductor cut by lines of magnetic flux flows in the direction opposite to that of the current which produced the lines of flux.
Industry:Aviation
The electrode in a bipolar transistor (PNP or NPN transistor) that compares with the cathode in an electron tube. In the symbol for a bipolar transistor, the emitter is the electrode with the arrowhead.
Industry:Aviation
