Per minute? month? year?
2006-08-30 09:20:36 · 5 answers · asked by rumarlee2003 1 in Science & Mathematics ➔ Other - Science
there's a systems engineer that had a wonderful answer to a question similar to this one. He said a 60w bulb cost about $0.11 in 24/hrs. Thats $3.30 a month and $39.60 a year!
Check it out here.
2006-08-30 09:27:37 · answer #1 · answered by still 3 · 0⤊ 0⤋
A 60-watt incandescent bulb left on all year would cost about $45 to keep on. However, the bulb would probably burn out first no matter what the warranty says.
Compact Fluorescent equivalent bulbs cost about 75% less per year and will last at least 18 months as long as they are not used on a dimmer.
2006-08-30 16:25:25 · answer #2 · answered by MЯ BAIT™ 6 · 0⤊ 0⤋
1kw of electricity is 1 unit, u should know the price of 1 unit, the companies specify it.
A 60W light bulb will run for 1000/60 hrs for 1 unit i.e. 16.67hrs
now u should b able to calculate how many hours a light bulb with different power (watt) will run.
and u can calculate the no. of units for a month by dividind the hours in a month by how many units the bulb will run for.
hope it was usefull
2006-08-30 16:30:35 · answer #3 · answered by harsh 2 · 0⤊ 0⤋
Only around 10 cents an hour.
2006-08-30 16:30:32 · answer #4 · answered by retired_dragon 3 · 0⤊ 0⤋
That depends on how much energy the bulb uses.
Doug
2006-08-30 16:28:28 · answer #5 · answered by doug_donaghue 7 · 0⤊ 0⤋