How to convert watts to amps
Watts to Amps / Amps to Watts Electrical Conversion Calculator
After testing several devices and recording the amps and watts for each, make the following calculations: Convert the watts you measured to kilowatts (divide watts by 1000). Enter the amount of time (in hours) the device is used each day. Calculate the kilowatt hours of electricity usage for the device.
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Use the following conversion factors to convert to watts. Watts = Volts X Amps Volt-Amps = Watts. Multiply the cost per kWh times the kW of the appliance and you’ll get a cost per hour for using the appliance. Appliance Wattage W ÷ 1000 = kW Rate Cost per Hour=
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watts hour. So the load has . 1470 watts. hour instead of . 1250. watts hour. Then calculate the capacity of the battery. As you know, Watt is Amps x Volt. So if the Watt hour is divided by Voltage of the battery, you will get the Amps hour. Watt hour / Volt = Amps hour. 1470 / 12 = 122.5 Ah. Thus to run . 1470 watts. load, minimum capacity of ...
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I = 500 watts ÷ 115 volts = 4.35 amps of current. C. Assume that you know amps and watts, you can calculate how many volts are in the circuit. by rearranging the formula to E = P ÷ I. Assume that there is a 1200 watt coffee. pot pulling 10 amps. What is the source of voltage? E = 1200 watts ÷ 10 amps …
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Remember that watts = volts x amps, so it is a simple process to divide the watts by the battery voltage to find the amp draw from the battery bank. The problem comes in choosing what voltage to use, as this changes constantly as the battery is being depleted.
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amps, and since . W = V x I, our resistor will convert . 21. watts of power into heat. That means our resistor must be rated for an *absolute minimum* of 21 watts. A larger wattage resistor will run cooler, and it's good practice to use a resistor rated for at least 50% higher wattage than You expect to handle.
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