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filament lamp: cost-80p efficiency-0.2 expected
filament lamp:
cost-80p efficiency-0.2 expected life- 1000 hours compact fluorescent lamp (CFL): cost- £3.00 efficiency-0.8
1 answer
asked by
sam
514 views
1A)
A filament lamp- cost- 80p effiency- 0.2 expected life- 1000 hours a compact fluorescent lamp (CFL)- cost- £3.00 effiency-
0 answers
asked by
4611star
552 views
A filament lamp-
cost- 80p effiency- 0.2 expected life- 1000 hours a compact fluorescent lamp (CFL)- cost- £3.00 effiency- 0.8
0 answers
asked by
4611star
968 views
The lowest resistance in a common electric circuit containing a common lamp is in which of these A) connecting wires.B) Both of
1 answer
asked by
Christy
1,062 views
A 100W incandescent lamp of filament area 45 mm^2, emits all its energy by radiation into the surrounding space of room at 22C.
0 answers
asked by
Tsunayoshi
507 views
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
0 answers
asked by
Jim
580 views
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
1 answer
asked by
Jim
1,186 views
Describe the spectrum of the light from a fluorescent lamp and from an incandescent (tungsten filament) lamp, and try to explain
1 answer
asked by
Jon
1,438 views
A lamp filament is made of tungsten. Why do we get a continuous spectrum rather than a tungsten line spectrum when light from an
1 answer
asked by
shelly
1,382 views
An incandescent lamp is marked '120v,75W'
a)what is the current in the lamp under normal condition of operation? b)How much does
1 answer
asked by
Charles
695 views