In normal simple circuits WATTS = VOLTS x AMPS
So if you use a 12V car battery 4 amps is 48 Watts
American 110V mains 4 amps = 440 Watts
English 240V mains 4 amps = 960 Watts
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To calculate the wattage, use the formula: watts = amps x volts. In this case, 4.3 amps x 230 volts = 989 watts.
Watt are amps x volts, so to know how many amps 4000 watts are you need to know the volts.
Formula use to calculate Watts
Watts = Amp * Volt
In your case 4.3 * 230 = 989 Watts.
To find the amperage, you can use the formula: Amps = Watts/Volts. Plugging in the values, you get Amps = 1800 Watts / 110 Volts ≈ 16.36 Amps.
30 amps at 12 volts is equal to 360 watts (P = V x I).
To find the amperage, you can use the formula: Watts = Volts x Amps. Rearranging it, we get Amps = Watts / Volts. Plugging in the values for 3000 Watts and 460 Volts, we get: Amps = 3000 / 460 = 6.52 amps.
To calculate amps, you need to know the voltage of the circuit. The formula to convert watts to amps is Amps = Watts / Volts. If the voltage is 120V, then 1200 watts would be equal to 10 amps (1200 watts / 120 volts = 10 amps).
watts are equal to amps times volts.