A filament lamp-

cost- 80p
effiency- 0.2
expected life- 1000 hours

a compact fluorescent lamp (CFL)-
cost- £3.00
effiency- 0.8
expected life- 8000 hours

a filament lamp with a power rating of 100W gives 2000 units of light.
what power rating would a CFL need to provide 2000 units of light?

a)8000W
b)20W
c)25W
d025W

Ask a New Question or answer this question.

Similar Questions

1A)A filament lamp- cost- 80p effiency- 0.2 expected life- 1000 hours a compact fluorescent lamp (CFL)- cost- £3.00 effiency-
1. 0 answers
filament lamp:cost-80p efficiency-0.2 expected life- 1000 hours compact fluorescent lamp (CFL): cost- £3.00 efficiency-0.8
1. 1 answer
Describe the spectrum of the light from a fluorescent lamp and from an incandescent (tungsten filament) lamp, and try to explain
1. 1 answer
The lowest resistance in a common electric circuit containing a common lamp is in which of these A) connecting wires.B) Both of
1. 1 answer