A refrigerator is not on all the time. It is controlled by a thermostat that keeps it at a certain temperature. To answer this question the total number of hours the refrigerator was actually running would have to be recorded. Knowing this information and the voltage at which the refrigerator operates a calculation could be made.
watts are equal to amps times volts.
BTU and kilowatt-hours are measures of energy, while power is measured in either kilowatts or BTU per hour. 1 kilowatt-hour is equal to 3412 BTU, or 1 kilowatt equals 3412 BTU/hr. 8000 BTU per hour is equal to 2.344 kilowatts, which is 19.53 amps at 120 v.
Depends on what refrigerator you are interested in. They all have a label somewhere, usually in the refrigerator compartment that lists the current. My refrigerator has a rating of 11.6 Amps. This is not a consistent current, but would be when the compressor is running.
A 1000W metal halide lamp ballast uses about 8% of the lamp's wattage, meaning that a 1000W lamp actually consumes 1080 watts, or 1.08 kilowatts. STEP ONE - TAKE HOURS USED AND MULTIPLY BY 1.08 kW STEP TWO - TAKE THAT AND MULTIPLY IT BY COST OF ELECTRICITY, WHICH FOR RESIDENTIAL IN 2008 IS AROUND 11 CENTS/kWH (10 CENTS COMMERCIAL RATES)
For the furnace Watts = Amps x Volts Divide watts by 1000 to get 4.8KW.
That depends on the voltage.
On 120 v a kilowattt is 8.3 amps, on 240 v it's 4.15 amps.
watts = volts x amps kilowatt = 1000 watts
watts are equal to amps times volts.
No, wattage is the product of amps times volts. You are charged by a utility company for the amount of watts that are used in a hour. These watts are totaled up over a month and multiplied by a specific kw/h (kilowatt per hour) that is set by the utility company. In my area I am charged .08 cents for every kilowatt (1000) watts used per hour.
Amps can not give you a kilowatt with out a voltage being applied to the question. Watts = Amps x Volts. Amps = 1000/ Volts.
A battery stores charge and supplies voltage and current. A kilowatt (KW) is a measure of power = Volts x Amps.
$67.74 using 120 volts. Great job on the math, but a refrigerator doesn't run 24 hours a day. It runs off of a thermostat and has periods of off/on. It depends on the climate in which you live (i.e. how hot it is in your house) as to how often your refrigerator kicks on. Its actually really hard to keep track of. If you buy a "Kill A Watt" meter, you can plug your fridge into it and it will tell you how many watts the fridge has actually used in a day. It probably only runs a few hours total each day!
BTU and kilowatt-hours are measures of energy, while power is measured in either kilowatts or BTU per hour. 1 kilowatt-hour is equal to 3412 BTU, or 1 kilowatt equals 3412 BTU/hr. 8000 BTU per hour is equal to 2.344 kilowatts, which is 19.53 amps at 120 v.
Depends on what refrigerator you are interested in. They all have a label somewhere, usually in the refrigerator compartment that lists the current. My refrigerator has a rating of 11.6 Amps. This is not a consistent current, but would be when the compressor is running.
The meter on the side of your house is a watt meter. You are charged for the electricity that you use in kilowatt/hours. See related links below
A kw (kilowatt) is 1000 amps x volts. If you assume your one phase system has 120 volts, then divide by 120. Cheap, but close enough for most work, assume 100 volts, then each amp is a tenth of a kilowatt.