Electronics (Mike Jaroch)
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WAFERA slice of semiconductor material upon which monolithic ICs are produced [14]. | ||
WAFER SWITCHA rotary switch in which the contacts are arranged on levels. Each level (wafer) is electrically independent but mechanically connected by the shaft of the switch [3]. | ||
WATTThe unit of electrical power that is the product of voltage and current [16]. | ||
WATT-HOURA practical unit of electrical energy equal to one watt of power for one hour [1]. | ||
WATT-HOUR METERA meter used to measure electrical energy [3]. | ||
WATTAGE RATINGA rating expressing the maximum power that a device can safely handle [1]. | ||
WATTMETERA meter used to measure electrical power [3] [16]. | ||
WAVE ANTENNASame as BEVERAGE ANTENNA [10]. | ||
WAVE MOTIONA recurring disturbance advancing through space with or without the use of a physical medium [10]. | ||
WAVE TRAINA continuous series of waves with the same amplitude and wavelength [10]. | ||
WAVE WINDINGAn armature winding in which the two ends of each coil are connected to commutator segments separated by the distance between poles [5]. | ||
WAVEFORMThe shape of the wave obtained when instantaneous values of an ac quantity are plotted against time in rectangular coordinates [2]. | ||
WAVEFORM ANALYSISObservation displays of voltage and current variations with respect to time or by harmonic analysis of complex signals [16]. | ||
WAVEFRONTA small section of an expanding sphere of electromagnetic radiation that is perpendicular to the direction of travel of the energy [10]. | ||
WAVEGUIDEA rectangular, circular, or elliptical metal pipe designed to transport electromagnetic waves through its interior [10] [11]. | ||
WAVEGUIDE DUPLEXERTR and atr tubes housed in a resonant cavity attached to a waveguide system. | ||
WAVEGUIDE POSTA rod of conductive material used as impedance changing devices in waveguides [11]. | ||
WAVEGUIDE SCREWA screw that projects into a waveguide for the purpose of changing the impedance [11]. | ||
WAVELENGTHThe distance, usually expressed in meters, traveled by a wave during the time interval of one complete cycle. It is equal to the velocity divided by the frequency [2] [10] [12]. | ||
WAVEMETERSCalibrated resonant circuits that are used to measure frequency [16]. An instrument for measuring the wavelength of an RF wave [18]. | ||
WEBER'S THEORYA theory of magnetism which assumes that all magnetic material is composed of many tiny magnets. A piece of magnetic material that is magnetized has all of the tiny magnets aligned so that the north pole of each magnet points in one direction [1]. | ||
WHEATSTONE BRIDGEAn ac bridge circuit used to measure unknown values of resistance, inductance, or capacitance [16]. | ||
WIDE-BAND AMPLIFIERAn amplifier designed to pass an extremely wide band of frequencies, such as a video amplifier [8]. | ||
WINDOWSee SLOT [11]. | ||
WIREAn insulated conductor, with low resistance to current flow, that is either solid or stranded [1] [4]. | ||
WIRING DIAGRAMA diagram that shows the connections of an equipment or its component devices or parts. It may cover internal or external connections, or both, and contains such detail as is needed to make or trace connections that are involved [4]. | ||
WOBBLE FREQUENCYThe frequency at which an electron wobbles on its axis under the influence of an external magnetic field of a given strength [11]. | ||
WORDS-PER-MINUTEAn approximate rate of speed. It means the number of five letter words with a space between them that can be transmitted or received in a one-minute period [17]. | ||
WORKThe product of force and motion [1]. | ||
WORKING VOLTAGEThe maximum voltage that a capacitor may operate at without the risk of damage [2]. | ||
WYE (Y)—A 3-phase connection in which one end of each phase winding is connected to a common point. Each free end is connected to a separate phase wire. The diagram of this connection often resembles the letter Y [5]. | ||