The terminology for VAC is Voltage Alternating Current. As for big watts, it is not electrical terminology, it could be a way of expressing maximum permitted wattage.
Watts is the product of amps times volts. W = A x V.
Multiply the current by the voltage: 120 times 0.3, which is 40 watts.
The formula you are looking for is W = A x V.
Assuming 120 VAC in a residence maximum watts = 15 x 120 = 1800 Watts. For a continuous load you can support 1440 watts which is 80& of maximum. You need 14 AWG gauge wire.
To calculate the amperage, you can use the formula: Amperage (A) = Watts (W) / Voltage (V). In this case, the heater draws 3500 watts and operates at 230 volts. So, the amperage will be approximately 15.22 amps.
The answer to this is country-specific. In the United States: Residential 120 VAC. Commercial also uses 277 VAC Elsewhere in the world: 220 volts to 260 volts, most frequently 230-240 volts AC.
If we assume that the inverter is used in your car on 12 Volts DC and you are creating 120 VAC; and the 2500 watts refers to the AC side of inverter then for a resistive load Amps = Watts / Volts = 2500/120.
size depends on the watts..-Shocker
If it is an incandescent light bulb (Gives off heat too hot to touch) it consumes 60 Watts when on and 0 watts when Off. When on it draws about 1/2 amp at 120 VAC.
Watts = Amps x Volts x Power Factor If you are talking about a light bulb or similar 60 watt device at 120 VAC the answer is 1/2 amp using standard household voltage and a power factor of 1.
Watts. Big wattage is measured in kilowatts (watts x 1000).CommentThe clue is in the name!
You can get more watts on the pokewalker by putting it in a big truck and just keep moving it. Tape it on it.
Watts = Amps x Voltage x Power Factor Hence to compute watts you need to know voltage and power factor. If you have a pure resistive load like a light bulb power factor = 1 and can thus be ignored. If you are asking about residential power, the voltage is 120 VAC so the computation is now trivial.