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A filament lamp- cost- 80p effiency- 0.2 expected life- 1000

A filament lamp-cost- 80p effiency- 0.2 expected life- 1000 hours a compact fluorescent lamp (CFL)- cost- £3.00 effiency- 0.8
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2. asked by 4611star
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1A)A filament lamp- cost- 80p effiency- 0.2 expected life- 1000 hours a compact fluorescent lamp (CFL)- cost- £3.00 effiency-
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2. asked by 4611star
3. 524 views
filament lamp:cost-80p efficiency-0.2 expected life- 1000 hours compact fluorescent lamp (CFL): cost- £3.00 efficiency-0.8
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2. asked by sam
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The lowest resistance in a common electric circuit containing a common lamp is in which of these A) connecting wires.B) Both of
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2. asked by Christy
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A 100W incandescent lamp of filament area 45 mm^2, emits all its energy by radiation into the surrounding space of room at 22C.
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2. asked by Tsunayoshi
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There are electrons in the filament of the ac lamp in your bedroom. When you turn on the lamp and it glows, the glowing comes
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2. asked by Jim
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There are electrons in the filament of the ac lamp in your bedroom. When you turn on the lamp and it glows, the glowing comes
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2. asked by Jim
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Describe the spectrum of the light from a fluorescent lamp and from an incandescent (tungsten filament) lamp, and try to explain
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2. asked by Jon
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A lamp filament is made of tungsten. Why do we get a continuous spectrum rather than a tungsten line spectrum when light from an
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2. asked by shelly
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An incandescent lamp is marked '120v,75W'a)what is the current in the lamp under normal condition of operation? b)How much does
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2. asked by Charles
3. 671 views