300 watts 0.3 kilowatts; 0.3kilowatts X 8 hours 2.4 kilowatt-hours
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.
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.
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
Electrical
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
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!
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!
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.
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.
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.
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.
To compute the electrical consumption of a device, you need to know the power rating of the device in watts and the duration of use in hours. The formula is Power (in watts) x Time (in hours) = Energy consumption (in watt-hours or kilowatt-hours). You can use this information to estimate the cost of running the device by multiplying the energy consumption by your electricity rate.
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.
To calculate the kilowatt hours (KWh) used to light a 30 watt light bulb for 1 hour, you would divide the wattage (30) by 1000 to get the kilowatt value (0.03). Then, multiply this by the number of hours (1) to get 0.03 KWh.
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.
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.
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.