WATT --The unit of electrical power.
TURNS RATIO -The ratio of the number of
turns in the primary winding to the number of
WHEATSTONE BRIDGE --An ac bridge
turns in the secondary winding of a transformer.
circuit used to measure unknown values of
resistance, inductance, or capacitance.
VALE NCE --The measure of the extent to
which an atom is able to combine directly with
WIRING DIAGRAM --A diagram that shows
other atoms. It generally depends on the number
the connections of an equipment or its component
and arrangement of the electrons in the outermost
devices or parts. It may cover internal or external
shell of the atom.
connections, or both, and contains such detail as
VALENCE SHELL --The electrons that form
is needed to make or trace connections that are
the outermost shell of an atom.
involved.
WORK --The product of force and motion.
VECTOR --A line used to represent both
direction and magnitude.
WYE (Y) --A three-phase connection in which
VOLT --The unit of electromotive force or
one end of each phase winding is connected to
a common ground.
electrical pressure. One volt is the pressure
required to send 1 ampere of current through a
X-AXIS --In a gyro, the spin axis of the gyro.
resistance of 1 ohm.
Y-AXIS --In a gyro, an axis through the center
VOLTAGE --(1) The term used to signify
of gravity and perpendicular to the spin axis.
electrical pressure. Voltage is a force that causes
current to flow through an electrical conductor.
Z-AXIS -In a gyro, an axis through the center
(2) The voltage of a circuit is the greatest effective
of gravity and mutually perpendicular to both the
difference of potential between any two con-
X (spin) and Y axes.
ductors of the circuit.
ZENER DIODE --A PN-junction, diode
VOLTAGE DIVIDER --A series network in
designed to operate in the reverse-bias breakdown
which desired portions of the source voltage may
region.
be tapped off for use in the circuit.
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