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The quantity of electricity delivered in one hour by a current whose average strength is one ampère. It is used as a unit of quantity, and is equal to 3600 coulombs. The terms Ampère minute and Ampère second are sometimes similarly used.

The unit of electric current; -- defined by the International Electrical Congress in 1893 and by U. S. Statute as, one tenth of the unit of current of the C. G. S. system of electro-magnetic units, or the practical equivalent of the unvarying current which, when passed through a standard solution of nitrate of silver i…

An instrument for measuring the strength of an electrical current in ampères.

mineral, of the zeolite, occurring in isometric crystals. By friction, it acquires a weak electricity; hence its name.

f a nerve in the region of the positive electrode or anode on the passage of a current of electricity through it. Foster.

sh of animals; as, animal food. Animal magnetism. See Magnetism and Mesmerism. -- Animal electricity, the electricity developed in some animals, as the electric eel, torpedo, etc. -- Animal flower (Zoöl.), a name given to certain marine animals resembling a flower, as any species of actinia or sea anemone, and other…

The positive pole of an electric battery, or more strictly the electrode by which the current enters the electrolyte on its way to the other pole; -- opposed to cathode.

glass, used in connection with the receiving apparatus for reading wireless signals. The electric waves falling on this contrivance increase its resistance several times. The anticoherer can be used in conjunction with a telephone.

ody. The diurnal arc is described during the daytime, the nocturnal arc during the night. Electric arc, Voltaic arc. See under Voltaic.

A widely used system of electric night signals in which a series of double electric lamps (white and red) is arranged vertically on a mast, and operated from a keyboard below.

A supposed medium around various bodies; as, electrical atmosphere, a medium formerly supposed to surround electrical bodies. Franklin.

from the trunk or limbs towards the head, a premonitory symptom of epilepsy or hysterics. Electric ~, a supposed electric fluid, emanating from an electrified body, and forming a mass surrounding it, called the electric atmosphere. See Atmosphere, 2.

hern lights. A luminous meteoric phenomenon, visible only at night, and supposed to be of electrical origin. This species of light usually appears in streams, ascending toward the zenith from a dusky line or bank, a few degrees above the northern horizon; when reaching south beyond the zenith, it forms what is called t…

le inflammable liquids, as gasoline or petrol, alcohol, naphtha, etc.), steam engines, or electric motors. The power of the driving motor varies from about 4 to 50 H. P. for ordinary vehicles, ranging from the run-about to the touring car, up to as high as 200 H. P. for specially built racing cars. Automobiles are also…

the movement of the mercurial column changes the indication of the tube. With the aid of electrical or mechanical devices adapted to it, it is used for the automatic regulation of the temperature of rooms warmed artificially, and as a fire alarm. -- Balance of torsion. See Torsion Balance. -- Balance of trade (Pol.…

ermal cymoscope which operates by increased resistance when subjected to the influence of electric waves. The original form consisted of an extremely fine platinum wire loop attached to terminals and inclosed in a small glass or silver bulb. In a later variety, called the liquid barretter, wire is replace by a column o…

An apparatus for generating voltaic electricity.

Penetrating rays readily deflected by a magnetic or electric field, emitted by radioactive substances, as radium. They consist of negatively charged particles or electrons, apparently the same in kind as those of the cathode rays, but having much higher velocities (about 35,000 to 180,000 miles per second).…

A metallic post attached to electrical apparatus for convenience in making connections.

A set screw used to bind parts together, esp. one for making a connection in an electrical circuit.