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300 watts 0.3 kilowatts; 0.3kilowatts X 8 hours 2.4 kilowatt-hours
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What is one half kilowatt of electricity?
A kilowatt by definition is the equivalent of "1,000 watts for one hour". It is the way the electric company measures power usage. One "half kilowatt": Imagine you have five 100W light bulbs burning in various places in your house. After one hour, you have used one-half kilowatt of electricity.
What does a kilowatt-hour measure?
It is a unit of energy. If energy is transferred at a rate (power) of one kilowatt, during one hour, then one kilowatt-hour (kilowatt times hour) of energy will be transferred. Since a joule is equal to a watt-second, a kilowatt-hour is the same as 3.6 million joules.
How much power is used in 8 hours with 12 amps appliance?
power = voltage x current, power has nothing to do with time. Electrical energy is power x time. so at 110 volts *household current, power = 110 x 12 = 1320 watts and energy = 1320 x 8 = 10,560 watt-hours or 10.56 kilowatt-hours
If a toaster draws 6.2amp of current at 120v how many kilowatt-hours of energy will be used in 3.5 hours?
Electrical
What is the formula for converting Kilowatts to Kilowatt Hours?
kWh= power(watts 'W') multiplied by time(hours 'h') takenThe formula is;- kWh= W X heg; an electrical coocker with a plate of 3.6 kW was used to coock food for 5 hours. calculate energy consumed in kWh.kWh= W X h ;- given W= 3.6kW; h=5hrskWh= 3.6 X 5= 18kWhThe Energy consumed was 18kWh
How many kilowatt hours would be used if 1500 watt used for 10 minutes?
1500 watts = 1.5 kilowatts 10 minutes = 1/6 hours. So 1500 watts for 10 minutes = 1.5/6 = 0.25 kilowatt hours.
How many kilowatt-hours do 50 w used for 12h equal?
A Kilowatt hour is 1000 watts per hour. A 50 watt bulb will use just 50 watts per hour. Therefore over 12 hours the 50 watt bulb will use 50*12 watts = 600 watts or 0.6 of a kilowatt hour.
What unit is household electricity measured in?
watts or kilowatts are used to measure power, which is how quickly energy flows, and electrical energy is measured in kilowatt-hours. A kilowatt-hour is also known as a Unit of electrical energy, and it is the amount of energy used when a power of 1 kilowatt flows for 1 hour.
How much does it cost to run a light bulb?
It depends on the bulb, how many watts it is. All bulbs are marked with the correct voltage and the power taken, in watts. You multiply the watts by the number of hours to find the watt-hours of energy used. Then divide by 1000 to find the kilowatt-hours. A kilowatt-hour is also called a unit and you pay about £0.15 for a unit of electricity. Let's say it's a 100 watt bulb running for 24 hours. That uses 2400 watt-hours or 2.4 kilowatt-hours, which costs about 2.4 x £0.15 which is £0.36.
How do you compute electrical consumption of a device?
A simple electrical device is a 60 watt light bulb. The bulb is consuming 60 watts of electricity from the moment you turn it on. If you keep that light bulb on for 10 hours the power used is 60 watts x 10 hours = 600 watts of power. Electricity is sold in Kilowatt Hours. A Kilowatt is 1000 watts of power. Depending on the state you live in, it sells for 7 to 18 cents per Kilowatt Hour. So if you leave that light bulb on 10 hours per day for 30 days you will have used up 600 watts x 30 days = 18,000 watts of electricity = 18 Kilowatt Hours. At an average cost of 10 cents per Kilowatt Hour that bulb costs you $1.80 per month to leave on. The formula is watts x time x cost per Kilowatt Hour = cost of use...Answer provided by Gene Evangelist
How many kilowatt hours - KWh - are used to light a 30 watt light bulb for 1 hour?
A kilowatt is 1,000 Watts. 30 Watts is equal to 0.03 kilowatts. A kWh or kilowatt-hour is the rate of electrical usage. It is a measure of kilowatts used per period of time (1 hour). 1 kWh is 1 kilowatt (1,000 watts) for 1 hour. So, multiply your 30 watts (0.03 kilowatts) by 1 hour to get kWh. =0.03 kWh In about 33 hours and 20 minutes, this lamp would use 1 kWh.
How many kilowatt hours KWh are used to light a 30 watt light bulb in 8?
A 30-watt bulb uses 0.03 kilowatt-hours every hour, or 30 kilowatt-hours in 1000 hours. To find the kilowatt-hours, multiply 0.03 by the time in hours.
How can a power rating be used to calculate electricity used?
The amount of energy used can be calculated by multiplying power x time: energy = power x time Since you normally pay the electricity used by the kilowatt-hour, it makes sense to convert the power rating to kilowatts. If it is specified in watts, divide that by 1000 to convert to kilowatts. Then multiply by the number of hours of use. For example: for a device that uses 100 watts, and which you turn on for 5 hours, your calculation would be: 0.1 kilowatt x 5 hours = 0.5 kilowatt-hours On some devices, watts are not specified. In that case, multiplying volts x amperes is usually close to the number of watts used.
What is the calculation of kilowatts hour?
The calculation of kilowatt-hours (kWh) is done by multiplying the power consumption in kilowatts (kW) by the time in hours (h) that the power is being used. kWh = kW × h. For example, if a device has a power rating of 1 kW and is used for 2 hours, the energy consumption would be 2 kWh.
How many kwh is used by a 60 watt bulb?
A kilowatt is 1,000 watts. A 60 watt bulb uses 60 watts in an hour. So, in half an hour it uses 30 watts. Now if a kilowatt costs 20 cents, what does 0.03 kilowatt cost?
A utility company charges its consumers 04 for each kilowatt hours of electricity If in a particular month a consumer used 1076 kilowatt hours of electricitywhat was the person's electric bill for?
.04 cents per 1000 watts. customer used 1076000 watts. 1076000/1000 x .04 = 43.03. 1076 x .04 = $43.03
A kilowatt-hour is equal to how many watts of electricity used for one hour?
1,000 watts
