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The reverse saturation current of the collector-base junction.



Related Terms

DIAMOND CIRCUIT

A gate circuit that provides isolation between input and output terminals in its off state, by operating transistors in their cutoff region; in the on state the output voltage follows the input voltage as required for gating both analog and digital signals, while the transistors provide current gain to supply output current on demand.

DELAY TIME

  1. The amount of time by which the arrival of a signal is retarded after transmission through physical equipment or systems. 2. The time taken for collector current to start flowing in a transistor that is being turned on from the cutoff condition. 3. A span of time during which a worker is idle because of factors beyond personal control.

HARMONIC FUNCTION

Any real function that satisfies a certain equation. In its simplest form, as used in tide and tidal current predictions, it is a quantity that varies as the cosine of an angle that increases uniformly with time

STATIONARY WAVE

A wave that oscillates without progressing. One-half of such a wave may be illustrated by the oscillation of the water in a pan that has been tilted. Near the axis, which is called the node or nodal line, there is no vertical rise and fall of the water. The ends of the wave are called loops and at these places the vertical rise and fall is at a maximum. The current is maximum near the node and minimum at the loops. The period of a stationary wave depends upon the length and depth of the body of water. A stationary wave may be resolved into two progressive waves of equal amplitude and equal speeds moving in opposite directions. Also called STANDING WAVE.

COUNTERCURRENT

A current usually setting in a direction opposite to that of a main current

BIPOLAR ELECTRODE

Electrode, without metallic connection with the current supply, one face of which acts as anode surface and the opposite face as a cathode surface when an electric current is passed through a cell.

GRAPHITE ANODE

  1. One of the electrodes of graphite used in a mercury cell to produce chlorine by electrolysis. 2. The rod of graphite which is inserted into the mercury-pool cathode of an ignitron to start current flow. 3. The collector of electrons in a beam power tube or other high-current tube.

ELECTRON-BEAM CHANNELING

The technique of transporting high-energy, high-current electron beams from an accelerator to a target through a region of high-pressure gas by creating a path through the gas where the gas density may be temporarily reduced; the gas may be ionized; or a current may flow whose magnetic field focuses the electron beam on the target.

ELECTROGRAPH

Any plot, graph, or tracing produced by the action of an electric current on prepared sensitized paper (or other chart material) or by means of an electrically controlled stylus or pen.

COMMUTATOR

A device that converts the alternating current sine wave produced in all generator armatures into direct current at the dc generator terminals.

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