In electro-plating the deposition of a mixture or virtual alloy of copper and tin. In general manipulation it resembles the operation of depositing gold and silver alloy, or of brassing. For bronzing the following bath is recommended: Prepare each by itself (a) a solution of copper phosphate and (b) a solution of stannous chloride in [...]

A method of determining the magnetic moment of a magnet. The magnet, n, s, under examination is fixed so that it is at right angles to the magnetic meridian, M, R, which passes through its own center and that of a compass needle. From the deflection of the latter the moment is calculated.

The type of Wheatstone bridge used by the committee of the association in determining the B. A. ohm; the meter bridge, q. v.

(a) A special bar of copper connecting the dynamos to the bus wire, q. v., in electric lighting or power stations. (b) Wheatstone’s bridge, q. v., and its many modifications, all of which may be consulted throughout these pages.

A term in medical electricity, used to designate the silent or brush discharge of high tension electricity. As an instance of its employment, the electric head bath (see Bath, Electric Head,) may be cited. The patient forming one electrode, being insulated and connected to one of the conductors, the other conductor, on being brought near [...]

If a conductor is electrified and placed upon a piece of glass, it will electrify the glass in contact with it by conduction or discharge. On removing the conductor the glass remains electrified. The localized electrification is shown by breathing gently on the glass, when a species of image of the conductor is produced by [...]

The weight which, applied in tension, will break a prism or cylinder, as an electric current conductor.

A switch used in the three-wire system to provide for the discontinuance of the running of one of the dynamos. By connecting the positive and negative bus wires to one terminal of the active dynamo, and the neutral bus wire to the other terminal, one dynamo will supply the current and the system operates like [...]

A point where an electric conductor is cut, broken, or opened by a switch or other device, or simply by discontinuity of the wires.

The deposition of a coating of brass by electrolysis. The plating bath contains both copper and zinc. As anode a plate of brass is used. The operation must be constantly watched. The deposition of both metals goes on simultaneously, so  that a virtual alloy is deposited. By changing the depth of immersion of the anode [...]