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  2. American wire gauge - Wikipedia

    en.wikipedia.org/wiki/American_wire_gauge

    American Wire Gauge ( AWG) is a logarithmic stepped standardized wire gauge system used since 1857, predominantly in North America, for the diameters of round, solid, nonferrous, electrically conducting wire. Dimensions of the wires are given in ASTM standard B 258. [ 1] The cross-sectional area of each gauge is an important factor for ...

  3. Two-wire circuit - Wikipedia

    en.wikipedia.org/wiki/Two-wire_circuit

    Two-wire circuit. In telecommunication, a two-wire circuit is characterized by supporting transmission in two directions simultaneously, as opposed to four-wire circuits, which have separate pairs for transmit and receive. The subscriber local loop from the telco central office are almost all two wire for analog baseband voice calls (and some ...

  4. Wire gauge - Wikipedia

    en.wikipedia.org/wiki/Wire_gauge

    In commerce, the sizes of wire are estimated by devices, also called gauges, which consist of plates of circular or oblong form having notches of different widths around their edges to receive wire and sheet metals of different thicknesses. Each notch is stamped with a number, and the wire or sheet, which just fits a given notch, is stated to ...

  5. Four-terminal sensing - Wikipedia

    en.wikipedia.org/wiki/Four-terminal_sensing

    Four-point measurement of resistance between voltage sense connections 2 and 3. Current is supplied via force connections 1 and 4. In electrical engineering, four-terminal sensing (4T sensing), 4-wire sensing, or 4-point probes method is an electrical impedance measuring technique that uses separate pairs of current-carrying and voltage-sensing electrodes to make more accurate measurements ...

  6. Four-wire circuit - Wikipedia

    en.wikipedia.org/wiki/Four-wire_circuit

    Four-wire circuit. In telecommunication, a four-wire circuit is a two-way circuit using two paths so arranged that the respective signals are transmitted in one direction only by one path and in the other direction by the other path. The four-wire circuit gets its name from the fact that is uses four conductors to create two complete electrical ...

  7. Wire - Wikipedia

    en.wikipedia.org/wiki/Wire

    Sample diameter 40 mm. A wire is a flexible, round, bar of metal . Wire is commonly formed by drawing the metal through a hole in a die or draw plate. Wire gauges come in various standard sizes, as expressed in terms of a gauge number or cross-sectional area . Wires are used to bear mechanical loads, often in the form of wire rope.

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