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Well, a 120V appliance that draws 15A would be using 1800W. (15x120). A killowatt hour is one killowatt used continuously for an hour. If you used that device for one hour straight, it would use 1.8 kWh. (Keep in mind the device may not draw a full 15A)
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∙ 14y ago
To calculate the kWh usage of a 120V 15A appliance, you can use the formula: Power (in watts) = Voltage x Current. For the given appliance, power = 120V x 15A = 1800 watts. To convert watts to kilowatt-hours (kWh), divide by 1000: 1800 watts / 1000 = 1.8 kWh. Therefore, the appliance uses 1.8 kWh of energy per hour.
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How many appliances can be used in 3.5kwh?
The number of appliances that can be used in 3.5 kWh depends on the energy consumption of each appliance. To calculate, divide 3.5 kWh by the average energy consumption of each appliance in kWh to determine how many can be used.
How much does a 110 volt 12 amp appliance cost per month with 9 cents per kWh?
To calculate the cost per month for the appliance, you first need to find the power consumption in kilowatts per hour (kWh). For a 110V appliance drawing 12A, the power consumption would be 1.32 kW (110V * 12A = 1320W = 1.32 kW). Multiply this by the number of hours the appliance runs per month to get the total kilowatt-hours (kWh) used, then multiply by the cost per kWh. If the appliance runs for, say, 100 hours a month, the calculation would be: 1.32 kW * 100 hours = 132 kWh * $0.09 = $11.88 per month.
Calculate electricity usage?
To calculate electricity usage, multiply the power rating of the appliance in kilowatts by the time it was used in hours. Then, multiply this by the electricity rate in kilowatt-hours to determine the cost. Finally, multiply this by the number of days the appliance was used to get the total electricity usage.
How do you work out total cost of 35kwh to cost per kwh?
To calculate the cost per kWh given 35 kWh of usage and the total cost, divide the total cost by the number of kWh. For example, if the total cost is $70 for 35 kWh, the cost per kWh would be $70 / 35 kWh = $2 per kWh.
How do you calculate 3 phase motor kWH where voltage are 440 and amps are 11?
To calculate the kWh consumed by a 3-phase motor, you'll need to know both the power factor and operating hours. The formula is: kWh = (√3 x Volts x Amps x Power Factor x Hours) / 1,000. Without the power factor and hours of operation, a precise kWh calculation cannot be provided using just voltage and current.
How many appliances can be used in 3.5kwh?
The number of appliances that can be used in 3.5 kWh depends on the energy consumption of each appliance. To calculate, divide 3.5 kWh by the average energy consumption of each appliance in kWh to determine how many can be used.
How much does a 110 volt 12 amp appliance cost per month with 9 cents per kWh?
To calculate the cost per month for the appliance, you first need to find the power consumption in kilowatts per hour (kWh). For a 110V appliance drawing 12A, the power consumption would be 1.32 kW (110V * 12A = 1320W = 1.32 kW). Multiply this by the number of hours the appliance runs per month to get the total kilowatt-hours (kWh) used, then multiply by the cost per kWh. If the appliance runs for, say, 100 hours a month, the calculation would be: 1.32 kW * 100 hours = 132 kWh * $0.09 = $11.88 per month.
What is the equation to find the amount of energy used. By appliance?
The equation to calculate the amount of energy used by an appliance is: Energy (kWh) = Power (kW) x Time (hours). Multiply the power consumption of the appliance in kilowatts by the number of hours it's used to find the total energy consumed in kilowatt-hours.
Calculate electricity usage?
To calculate electricity usage, multiply the power rating of the appliance in kilowatts by the time it was used in hours. Then, multiply this by the electricity rate in kilowatt-hours to determine the cost. Finally, multiply this by the number of days the appliance was used to get the total electricity usage.
How do you calculate the monthly running costs of electrical appliances?
When you get your electric bill, look to see how many kilo watt hours (kWh) you used for the month. Then how much the bill cost. take the price divided by the (kWh). This is truly what your paying per (kWh). One (kWh) is 1000 watts being used for a hour, so one 100 watt light being used for 10 hours = 1 (kWh) or a 1500 watt hair dryer being used for an hour = 1.5 (kWh). so if your appliance power use is listed in amps, take amps x volts to figure out the watts. Plus determine how often the appliance runs. this will give You an idea of cost.
How do you calculate running cost using kwh?
To calculate the running cost of an appliance using kilowatt-hours (kWh), you will need to multiply the power consumption of the appliance in kilowatts by the number of hours it is used, then multiply that by the rate you pay for electricity per kilowatt-hour. The formula is: Running cost = (Power consumption in kW x Hours used) x Cost per kWh.
How many KWh does a clothes dryer use?
None if your plugged in to the neighbors electricity!!
How do you work out total cost of 35kwh to cost per kwh?
To calculate the cost per kWh given 35 kWh of usage and the total cost, divide the total cost by the number of kWh. For example, if the total cost is $70 for 35 kWh, the cost per kWh would be $70 / 35 kWh = $2 per kWh.
How you calculate import Kvarh in percentage?
P.F = Kwh/Kvarh
How many kWh in a cubic meter of water?
kWh stands for kiloWatthours, the amount of electrical energy an appliance uses or generates in one hour measured in kiloWatts. It has nothing to do with one cubic metre of water.
How much power is in a 120V line?
Most 120 Volt appliances have their Watts listed somewhere on the appliance. Divide this number by 1,000 to get kilowatts. Determine the rate you are charged for electric power. Your electric bill will tell you how many kWh(kilowatt hours) you use, and what the total charge is. Divide your total charge ($?) by the kWh used. In northern Illinois, we are charged about $0.11 per kWh. Multiply the number of hours the appliance is used by its power consumption in kilowatts. This gives you the number of kWh the appliance used. Then multiply that kWh value by the rate for your area that you determined from your electric bill. That will be the cost for the number of hours the appliance was on. Example: If I toast 2 slices of bread in my toaster, it takes about 3 minutes, or 0.05 hours. My electric bill is $61.38 and I used 558 kwh for that month. Dividing $61.38 by 558, I get about $0.11 per kWh. So, I divide my toaster Wattage (750) by 1,000 to get 0.75 kW. So now I can multiply the hours that the appliance was used (0.05) by its power consumption rate in kW (0.75). This result is 0.0375 kWh of energy used. Then I can multiply the rate the electric company charges ($0.11) by the energy used (0.0375 kWh). The final result is $0.004125.
How do you calculate 3 phase motor kWH where voltage are 440 and amps are 11?
To calculate the kWh consumed by a 3-phase motor, you'll need to know both the power factor and operating hours. The formula is: kWh = (√3 x Volts x Amps x Power Factor x Hours) / 1,000. Without the power factor and hours of operation, a precise kWh calculation cannot be provided using just voltage and current.
