of electrical pressure as a current flows through
V
a resistance.
VOLT-- The unit of electromotive force or electrical
W
pressure. 1 volt is the pressure required to send
1 ampere of current through a resistance of 1
WATT-- The practical unit of electrical power. It is
ohm.
the amount of power used when 1 ampere of dc
flows through a resistance of 1 ohm.
V O L T A G E -- (1) The term used to signify
electrical pressure. Voltage is a force
WATTAGE RATING-- A rating expressing the
that causes current to flow through an
maximum power that a device can safety handle.
electrical conductor. (2) The voltage of a
circuit is the greatest effective difference of
WATT-HOUR-- A practical unit of electrical energy
potential between any two conductors of the
circuit.
equal to 1 watt of power for 1 hour.
VOLTAGE DIVIDER-- A series circuit in which
WEBER'S THEORY-- A theory of magnetism that
assumes that all magnetic material is composed
desired portions of the source voltage may be
of many tiny magnets. A piece of magnetic
tapped off for use in equipment.
material that is magnetized has all of the tiny
magnets aligned so that the north pole of each
VOLTAGE DROP-- The difference in voltage
magnet points in one direction.
between two points. It is the result of the loss
AI-8
