A galvanoscope; an instrument for qualitatively detecting potential difference, fall or rise. (See Galvanoscope.)

The portion of an active circuit capable of deflecting a magnetic needle. This properly includes all of the metallic conductor of a circuit. (Obsolete.)

A source of current; a current generator; a producer of potential difference. (Obsolete.)

A galvanometer. (Obsolete.)

An apparatus by means of which variable quantities of wire are thrown into the circuit; a rheostat using wire. (See Rheostat, Wheatstone’s.)

A form of Wheatstone’s Bridge adapted for reversal of the positions or interchange of the proportionate arms, v., so that the accuracy of the coils can be tested.

The principal in virtue of which a device for producing a given form of energy can absorb the same and do work. The reversibility of the dynamo is its quality in virtue of which it can act as a current generator, thereby converting mechanical energy into electric energy, or if a current is passed through [...]

A line or conductor which is supposed to carry current back to its starting point, after it has traversed a line. It may be a wire or the grounding of the ends of a line [or] may make the earth act as a return, termed ground- or earth-return. The best distinction of a return is [...]

Carbon deposited in coal gas retorts from decomposition of the hydrocarbons. It is a very hard, pure form, and is of graphitic modification. Owing to its great hardness it is little used for electrical purposes, the molded carbons being easier to make. The deposition occurs in the regular gas-making process, and is a disadvantage to [...]

Coercitive or coercive force; by virtue of which steel retains its magnetism. It is the more modern name, “coercive force” as a term being rejected by many. Synonyms–Coercive Force–Coercitive Force.