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67 Cards in this Set
- Front
- Back
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(8) parts of incandescent lamp |
Contact wires, inert gas, base, stem, button, support, filament, bulb |
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Carries the current to the filament |
Contact wires |
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Slows down the evaporation of the filament |
Inert gas |
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Metal end of a light bulb inserted into a socket |
Base |
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Supports the button |
Stem |
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End of the stem |
Button |
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The filaments support are attached to it |
Button |
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Metal wires holding the filament |
Support |
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Emits light rays |
Filament |
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Made of tungsten |
Filament |
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Filament made of |
Tungsten |
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Gas sealed in a glass envelope into which the luminous body of a lamp is inserted |
Bulb |
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(8) evolution of incandescent lamp |
Ntbk |
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evo. Platinum filament |
Sir Humphy Davy I |
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Evo. Carbon arc lamp |
Sir Humphy Davy I |
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Evo. Vacuum tube enclosure |
Warren De La Rue |
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Evo. Powdered charcoal filament |
Frederick de Molens |
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Evo. Carbonised bamboo filament |
Heinrich Gobel |
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Evo. Gas filled "globe" |
Woodward and Evanx |
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Evo. Long lasting filament |
Thomas Edison |
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Evo. Better filament production |
Lewis Latimer |
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Evo. Tungsten filament |
William David |
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CFL |
Compact Fluorescent Lamp |
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(5) equivalents of incandescent lamp to cfl |
Ntbk |
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Incandescent lamp life |
750-1,000 hours |
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CFL lamp life |
6,000-15,000 hours |
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Amount of light produced per watt of electricity (incandescent) |
8-5 lumens |
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Amount of light produced per watt of electricity (CFL) |
50-75 lumens |
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Measurement unit of brightness |
Lumens |
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Energy efficiency (incandescent) |
10% used to produce light, and 90% emitted as heat |
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Energy efficiency (CFL) |
consume only 1/5 to 1/3 of the power of similar wattage incandescent bulbs |
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(5) disadvantages of incandescent |
Creates light by heating solid material (tungsten filament); most of the energy lost as heat; inefficient: 60W Edison bulb = 6W LED; operating cost; 40 and 60 watt bulbs are banned in the USA |
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(5) advantages of incandescent |
No flickering; inherently dimmable; no ballast required; cheap as hell; warm color temperature |
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Electric bulb with special coating inside |
Fluorescent |
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Device that produces light |
Lamp |
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Supports the lamp |
Base |
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The tube is filled with very low pressure mercury vapor and a special powder coat inside the tube |
Fluorescent light |
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Fluorescent light tube is filled with ---- |
very low pressure mercury and special powder coat |
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Located at each end of the Fluorescent tube |
Cathodes |
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When the cathodes at each end of the tube activates the ---, they cause the ---- to produce light |
Vapor; fluorescent coating |
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(4) shapes of a CFL |
Tubular, circular, u-shaped, spiral |
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(9) parts of fluorescent tube |
Bulb, base, phosphor, gas, cathode, arc discharge, exhaust tube, stem press, lead-in-wires |
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Straight glass tube |
Bulb |
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Connects to the electrical circuit |
Base |
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Coating inside the bulb |
Phosphor |
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Usually argon or a mixture of inert gases at low temperature |
Gas |
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Gas in fluorescent tube is usually |
Argon |
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Where electrons enter (coiled tungsten) |
Cathode |
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Excites the mercury vapor which generates --- |
Arc discharge; radiant energy |
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Where air is exhaust during manufacture and inert gas introduced into the bulb |
Exhaust bulb |
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An airtight seal and assure the same coefficient of expansion of the glass |
Stem press |
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Connects the base pins carrying the current to and from the cathodes and the mercury arc |
Lead-in-wires |
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(3) parts of a fluorescent lamp |
Ballast, starter, bulb |
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Regulates the current to the bulb and provides sufficient voltage to the bulb |
Ballast |
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Allows current to flow through the filament at the ends of the tube |
Starter |
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Also known as time starter |
Starter |
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Starter aka |
Time starter |
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(2) diode |
Anode (+) and Cathode (-) |
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Where electrons exits |
Anode |
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Transforms ultraviolet radiation into visible light |
Phosphor |
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Transforms ultraviolet radiation into visible light |
Phosphor |
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A tubular electric lamp having a coating of fluorescent material |
Fluorescent |
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Discovered electric charge |
Ancient greeks |
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Father of Modern Electricity |
Nikola Tesla |
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First person to use the terms (3) |
William Gilbert; electric force, magnetic pole, and electric attraction |
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William Gilbert wrote the book "---" |
"De Magnete, magneticisique corporibus" |
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Benjamin Franklin's famous experiment |
Kite experiment |
