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tell how much it costs to run a 50in samsung dlp tv for an hour...in the manual it says it uses about 10 watts per hour so how much does that cost?

is the energy produced from electrons that come from the National Grid? how is this energy delivered? im really lookiing into tvs, please help, and please simplify

2007-02-14 06:09:54 · 3 answers · asked by DP 2 in Science & Mathematics Engineering

3 answers

Watts is a measure of continuous power, so "watts per hour" is meaningless. Energy consumption is measured in watt-hours, which means one watt used for one hour. So a 10 watt appliance run for an hour uses 10 watt-hours. The utility company (or whoever you buy your electricity from) bills you in kilowatt-hours, one kilowatt-hour being 1000 watt-hours.

I suspect you have mis-read the manual - a 50" DLP TV probably uses more like 200 watts.

2007-02-14 07:02:25 · answer #1 · answered by injanier 7 · 0 0

The actual cost is based on how much the electric company charges in your area.

Usually electronic is sold in kilowatt-hours. If you run a 10 watt television for 1 your, you'd have to run it for 100 days to hit a kilowatt. More likely you'll run it 5 hours a day, in which case you'd hit 1 kilowatt in 20 days.

In LA, it looks like electricity is about $.17 per kilowatt hour. So in 20 days your TV would cost you $.17.

2007-02-14 14:27:34 · answer #2 · answered by shp.jc 2 · 0 0

Your plug in power (wall energy) is determined from an energy plant/ power supply station. You can consider the power lines outside your home like the terminals of a battery - with the visible power lines above acting like the positive terminal, and the ground acting like the negative.

I cannot give you a definite price estimate until you supply me with a kWh or consumable energy price rate.

It looks like you are interested in appliance efficiency rather that tv type. Tv's come with specifications, when you look around for a tv, ask a photocopy the specs of the tv. However, a general rule CRT (cathode ray tube) tv's use more energy than LCD (liquid crystal display)/ plasma. CRT's are the big fat tv's.

2007-02-14 14:19:19 · answer #3 · answered by victoria 2 · 0 0

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