ELEMENT-- A substance, in chemistry, that cannot
ELECTROCHEMIC-- The action of converting
be divided into simpler substances by any means
chemical energy into electrical energy.
passes from one medium into another, such as
in an electrical cell where the current leaves or
F E R R O M A G N E T I C M A T E R I A L -- A highly
returns to the electrolyte.
magnetic material, such as iron, cobalt, nickel,
or alloys, that makes up these materials.
ELECTRODYNAMICS METER MOVEMENT-- A
meter movement using freed field coils and
FIELD OF FORCE-- A term used to describe the
total force exerted by an action-at-a-distance
phenomenon such as gravity upon matter,
ELECTROLYTE-- A solution of a substance that is
electric charges acting upon electric charges,
capable of conducting electricity. An electrolyte
magnetic forces acting upon other magnets or
may be in the form of either a liquid or a paste.
E L E C T R O M A G N E T -- A n electrically excited
FIXED RESISTOR-- A resistor having a definite
magnet capable of exerting mechanical force, or
of performing mechanical work.
FLUX-- In electrical or electromagnetic devices, a
ELECTROMAGNETIC-- The term describing the
general term used to designate collectively all
relationship between electricity and magnetism.
the electric or magnetic lines of force in a
Having both magnetic and electric properties.
FLUX DENSITY-- The number of magnetic lines of
production of a voltage in a coil due to a change
force passing through a given area.
in the number of magnetic lines of force (flux
ELECTROMOTIVE FORCE (EMF)-- The force that
with different electrical charges or when there is
a difference of potential between the two points.
The unit of measurement in volts.
GALVANOMETER-- A meter used to measure small
values of current by electromagnetic or
ELECTRON-- The elementary negative charge that
revolves around the nucleus of an atom.
GROUND POTENTIAL-- Zero potential with
respect to the ground or earth.
ELECTRON SHELL-- A group of electrons which
have a common energy level that forms part of
the outer structure (shell) of an atom.
H E N R Y ( H ) -- The electromagnetic unit of
ELECTROSTATIC-- Pertaining to electricity at rest,
inductance or mutual inductance. The
such as charges on an object (static electricity).
variation of 1 ampere per second induces 1 volt.
ELECTROSTATIC METER MOVEMENT-- A
meter movement that uses the electrostatic
smaller units are used such as the millihenry
repulsion of two sets of charges plates (one
(mH), which is one-thousandth of a henry (H),
freed and the other movable). This meter
and the microhenry (Áh), which is one-millionth
movement reacts to voltage rather than to
of a henry.
current and is used to measure high voltage.