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Resistance of the cathode in a Fluorescent lamp. It is measured "cold" before the lamp is turned on (Rc) or "hot" after the lamp is turned on (Rh). The ratio of the hot resistance to the cold resistance is also measured (Rh/Rc).

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Частина мови: noun
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Галузь/тема: Lights & lighting
Category: Lighting products
Company: GE
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Супротстављање, пружање супротног напора или ефекта.

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Императивно или неочекивано одбацивање или одбијање напредовања или другачијег приступа.

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Electrical equipment; Power supplies

Property of a conductor that determines the current produced by a given difference of potential. The ohm is the practical unit of resistance.

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Lights & lighting; Lighting products

For electrical discharge lamps, this is the voltage measured across the discharge when the lamp is operating. It is governed by the contents of the chamber and is somewhat ...

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An inorganic chemical compound processed into a powder and deposited on the inner glass surface of fluorescent tubes and some mercury and metal-halide lamp bulbs. Phosphors are ...

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Lights & lighting; Lighting products

Measurement of the relationship between the AC source voltage and current. High power factor ballasts require less AC operating current at the same wattage than an equivalent low ...

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Lights & lighting; Lighting products

A general term for the release of energy in a "wave" or "ray" form. All light is radiant energy or radiation, as is heat, UV, microwaves, radio waves, etc.