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How can you tell how many kilowatt hours will result by using an item that is rated 300 watts over time?
Alg47wiki
1 KWH equals 1000 watts of power consumption in one hour, so a 300 watt device would use 1 KWH every 3.3 hours of continuous use.
Wiki User
∙ 9y ago
Wiki User
∙ 15y ago300 x 24 = 7.4 kw/h
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What does kilowatt hours mean?
kWh = Power(kW) x Time (hours)AnswerA kilowatt hour (symbol kW.h) is a unit of measurement of electrical energy.
What is the cost of using a 100 watts 220 volts lamp for twenty hours at three pesos per kilowatt hour?
6 pesos.
How do you calculate the Monthly cost of using a 700 watt refrigerator that runs for 10 hours a day at a cost of 0.09 Killowatts per hour?
(700 watts) x (10 hours/day) x (30 days/month) x (1 kilowatt / 1,000 watts) =(700 x 10 x 30 / 1,000) (watt - hour - day - kilowatt / day - month - watt) =210 kilowatt-hour / monthWe're guessing that the actual cost of your electric energy is $0.09 per kilowatt-hour.(210 kilowatt-hour / month) x ($0.09 / kilowatt-hour) = $18.90 per month .
What do you call one thousand watts?
The kilowatt (kW) is one thousand watts.
How much power does a 60 watt fluorescent bulb use?
First of all, lamps (or any other electrical appliance, come to that) don't 'use' power.'Power' simply tells you the rate at which your lamp consumes energy. A 60- W lamp is using energy at the rate of 60 joules per second -i.e. for every second the lamp is on, it is consuming 60 joules of energy. This is because one watt is equivalent to one joule per second.To complicate matters, however, your electricity company measures the energy purchased by you, not in joules (or kilojoules or megajoules, etc.), but in a special unit called the 'kilowatt hour' -which is equivalent to 3.6 megajoules.To find out how much energy your lamp is using, in kilowatt hours, you must multiply its rating (in kilowatts) by the amount of time it is operating (in hours). So if, for example, your 60-W lamp runs for, say, four hours, then the energy consumed would be (60/1000) x 4 = 0.24 kilowatt hours. From this, you can work out the cost of running your lamp, by mulitplying the number of kilowatt hours by the amount your electricity company charges per kilowatt hour.
What is the cost per week of using a 40w light bulb for 36 hours in a week?
Not enough information - I don't know what your light company charges you per kWh. Here is how you calculate this: a) Convert the week to hours. b) Convert the watts to kilowatts. c) Multiply the result of part (a) by the result of part (b), to get the total number of kilowatt-hours. d) Get the cost per kilowatt-hour. Look at a bill from your power company. If the cost per kilowatt-hour is not stated explicitly, you can divide the total amount of dollars (or whatever) by the kilowatt-hours billed, to get the cost, in dollars per kilowatt-hour. e) Multiply the result of part (c) by the result of part (d).
How is domestic electricity measured?
It is not power which is measured in homes, but energy consumption. Electricity companies charge for energy consumption in kilowatt hours (kW.h). This is done using an energy meter (also known as a 'watt-hour meter' or 'kilowatt-hour meter'), which monitors the supply voltage, and the in-phase component of the load current.
How many KWh will one 250 Watt solar panel generate in one day Probably using 6.5 hours sunlight Southern California?
Use the formula: energy = power x time If energy is in watts and time is in hours, power will be in watt-hours. Divide that by 1000 to get kWh. Alternately, you can convert watt to kilowatt before doing the multiplication - in that case, kilowatt x hours = kilowatt-hours.
What does kilowatt hours mean?
kWh = Power(kW) x Time (hours)AnswerA kilowatt hour (symbol kW.h) is a unit of measurement of electrical energy.
How much energy is used if 500 watts of power is left on for 5 hours?
A kilowatt hour is equal to the amount of electrical energy consumed at a rate of one kilowatt. 1 kilowatt hour is the same as 1000 watt-hours.So using that principle. A 500 watt microwave will consume 500 watt-hours in an hour, or 0.5 kilowatt-hour.CommentIn practice, it's difficult to determine an answer to your question, because microwaves don't operate continuously but, rather, in short bursts. Without knowing the cycle rate of each burst of energy, it's impossible to come up with a definitive answer.
What is the cost of using a 100 watts 220 volts lamp for twenty hours at three pesos per kilowatt hour?
6 pesos.
How do you Calculate Pumping Cost using Horse Power and also Amp's?
Horse-power: convert that to kilowatt. Multiply by the time in hours you have the pump on, to get kilowatt-hours. Multiply the result by the cost of each kilowatt-hour. (Look at a recent electricity bill - if it doesn't explicitly state the cost per kilowatt-hour, you can divide the total of the bill by the number of kilowatt-hours consumed.)Amperes: You would also need the voltage. If you multiply amperes by volts, you get the power in watts. Divide the result by thousand to get kilowatts. Then continue as above.CommentAs the horsepower quoted for a machine is always its output power, you will need to know the efficiency of the machine in order to determine the input power (in watts), before performing the above calculations. The input power is always higher than the output power. Efficiency varies according to (a) the power rating of the motor, and (2) the actual load it is supplying, and can be less than 80% for smaller motors.
What would be the cost of operating 60 1000watt Metal Halide lamps for 10 hr?
To find out the cost of operating 60 1000watt Metal Halide lamps for 10 hours, you multiply the amount of power (in kilowatts) by time and hours. That will give you kWh (kilowatt hours), then you find out how much your power costs in $/kWh, then divide the kilowatt hours you are using by the cost ($/kWh).
How do you calculate the Monthly cost of using a 700 watt refrigerator that runs for 10 hours a day at a cost of 0.09 Killowatts per hour?
(700 watts) x (10 hours/day) x (30 days/month) x (1 kilowatt / 1,000 watts) =(700 x 10 x 30 / 1,000) (watt - hour - day - kilowatt / day - month - watt) =210 kilowatt-hour / monthWe're guessing that the actual cost of your electric energy is $0.09 per kilowatt-hour.(210 kilowatt-hour / month) x ($0.09 / kilowatt-hour) = $18.90 per month .
How many kilowatts would be saved if you turned off everything in your house in 3 minutes?
It depends on what you are using. If you were using 5 kW, then turning everything off would save 5 kW of power. In three minutes that would save 15 kilowatt-minutes of energy, equal to 0.25 kilowatt-hours.
What is a sentence using the word result?
I studied for two hours and as a result I got a good grade
How much money do you save while using wind energy?
One can save as much as $3.05 per kilowatt hour with the use of wind energy. If a household consumes 50 kilowatt hours per month, that makes $152.50 savings on a monthly basis.
