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The voltage between a corroding metal and a reference electrode.



Related Terms

CAPACITANCE LEVEL INDICATOR

A level indicator in which the material being monitored serves as the dielectric of a capacitor formed by a metal tank and an insulated electrode mounted vertically in the tank.

TUNGSTEN ELECTRODE

A non-filler metal electrode used in arc welding or cutting, made mainly from the tungsten metal.

HOLE INJECTION

The production of holes in an n-type semiconductor when voltage is applied to a sharp metal point in contact with the surface of the material.

CUTOFF VOLTAGE

  1. The electrode voltage value that reduces the dependent variable of an electron-tube characteristic to a specified low value. 2. See critical voltage.

ELECTROSTATIC VOLTMETER

A voltmeter in which the voltage to be measured is applied between fixed and movable metal vanes; the resulting electrostatic force deflects the movable vane against the tension of a spring.

DIODE FORWARD VOLTAGE

The voltage across a semiconductor diode that is carrying current in the forward direction; it is usually approximately constant over the range of currents commonly used. Also known as diode drop; ware or metal by immersion into a tank of melted nonmetallic material, such as resin or plastic, then chilling the adhering melt.

BACK BIAS

  1. Degenerative or regenerative voltage which is fed back to circuits before its originating point; usually applied to a control anode of a tube or other device. 2. Voltage applied to a grid of a tube (or tubes) or electrode of another device to reduce a condition which has been upset by some external cause.

FORMING

  1. Application of voltage to an electrolytic capacitor, electrolytic rectifier, or semiconductor device to produce a desired permanent change in electrical characteristics as a part of the manufacturing process. 2. A process for shaping or molding sheets, rods, or other pieces of hot glass, ceramic ware, plastic, or metal by the application of pressure.

ELECTRODE CHARACTERISTIC

Relation between the electrode voltage and the current to an electrode, all other electrode voltages being maintained constant.

PH METER

An electronic voltmeter using a pH-responsive electrode that gives a direct conversion of voltage differences to differences of pH at the temperature of the measurement.

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