Post a New Question

physics! HELP!

posted by .

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?


Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

More Related Questions

Post a New Question