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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 do 50 w used for 12h equal?
Well, isn't that a happy little question! To find out how many kilowatt-hours 50 watts used for 12 hours equals, we simply need to do a little math. Since 1 kilowatt is equal to 1000 watts, we can convert the 50 watts to 0.05 kilowatts. Multiplying 0.05 kilowatts by 12 hours gives us a total of 0.6 kilowatt-hours. Happy calculating!
How many kilowatt hours would be used if 1500 watt used for 10 minutes?
Well, honey, if you've got a 1500-watt appliance running for 10 minutes, that's gonna be 0.25 hours (10 minutes is 1/6 of an hour). So, you'd end up using 0.375 kilowatt hours (1500 watts * 0.25 hours = 375 watt hours = 0.375 kilowatt hours). Hope that clears things up for ya!
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 many kilowatt hours KWh are used to light a 30 watt light bulb in 8?
To calculate the kilowatt hours (kWh) used by a 30 watt light bulb in 8 hours, we first convert the power to kilowatts: 30 watts = 0.03 kilowatts. Then, multiply this by the time in hours: 0.03 kW * 8 hours = 0.24 kWh. So, 0.24 kWh are used to light a 30 watt light bulb in 8 hours.
How much energyin kilowatt-hoursis transferred when a 2400watt washing machine is used for 60 minutes?
The energy transferred can be calculated by multiplying the power (2400 watts) by the time (1 hour = 60 minutes): Energy = Power x Time. 2400 watts * 1 hour = 2400 watt-hours. To convert watt-hours to kilowatt-hours, divide by 1000: 2400 watt-hours / 1000 = 2.4 kilowatt-hours. Therefore, 2.4 kilowatt-hours of energy is transferred when a 2400 watt washing machine is used for 60 minutes.
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 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 can a power rating be used to calculate electricity used?
A power rating indicates the rate at which electrical energy is consumed by a device. To calculate the electricity used, multiply the power rating (in watts) by the time the device is in use (in hours), and divide by 1000 to convert to kilowatt-hours. This formula gives the total electricity consumption of the device.
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.
What is the calculation of kilowatts hour?
I'm not entirely sure I understand the question. Watts are a measure of power. Power (watts) applied over time consumes energy. Voltage x Amperage = watts 1000 watts is one kilowatt. One kilowatt applied for one hour consumes 1 kilowatt hour of energy.
How to find kilowatt-hours (kWh) from kilowatts (kW)?
To find kilowatt-hours (kWh) from kilowatts (kW), you need to multiply the power in kilowatts by the time in hours that the power is used. The formula is: kWh kW x hours. This calculation will give you the total energy consumed in kilowatt-hours.
How much money does 600 watts cost?
To calculate the cost of using a 600-watt device, you need to know the cost of electricity per kilowatt-hour (kWh) in your area. You can multiply the wattage (600 watts) by the number of hours the device is used to get the total watt-hours consumed. Then, divide by 1000 to convert to kilowatt-hours and multiply by the cost per kilowatt-hour to determine the total cost.
