wound with wire.

Core, Laminated. When the core is built up of a number of separate
pieces of the same material, but not insulated from
each other.

Coulomb. The unit of electrical quantity. It is the quantity
passed by a current of one ampere intensity in one
second of time.

Couple, Electric. Two or more electrodes in a liquid to produce an
electric force.

Current, Alternating. A natural current produced by the action of
electro-magnets. It is a succession of short impulses
in opposite directions.

Current, Constant. A current which is uniformly maintained in a steady
stream.

Current, Induced. A current produced by electro-dynamic induction.

Current Meter. An apparatus for indicating the strength of a current.
An ammeter.

Current, Oscillating. A current which periodically alternates.

Current, Periodic. A periodically varying current strength.

Current, Undulating. A current which has a constant direction,
but has a continuously varying strength.

Decomposition. The separation of a liquid, such as an electrolyte,
into its prime elements, either electrically or
otherwise.

Deflection. The change of movement of a magnetic needle out of
its regular direction of movement.

Demagnetization. When a current passes through a coil wound on an
iron core, the core becomes magnetized. When the
current ceases the core is no longer a magnet. It
is then said to be _demagnetized_. It also has
reference to the process for making a watch
non-magnetic so that it will not be affected when
in a magnetic field.

Density. The quantity of an electric charge in a
conductor or substance.

Depolarization. The removal of magnetism from a permanent magnet,
or a horse-shoe magnet, for instance. It is generally
accomplished by applying heat.

Deposition, The act of carrying metal from one pole of a cell to
Electrolysis. another pole, as in electroplating.

Detector. Mechanism for indicating the presence of a current