The formula you need to use is I = W/E.
Use this, easier for the average person:
The conversion of Amps to Watts is governed by the equation Watts = Amps x Volts. For example 1 amp * 110 volts = 110 watts
500w = 250v X A amps Therefore: 500w/250v= 2amps
Watts is what you get by multiplying Amps times Voltage, so unless you know Voltage there's no way of telling. For 100 Volts you'd get 250 Watts at 1 amp, for 50 Volts you get it at 5 Amps, and so on.
For a resistive load Watts = Volta * Amps. Therefore, you have 1/4 amp or 250 Milliamps (250ma)
Using the equation Volts X Amps = Watts, you can take 3000 watts / Volts to get your answer: 3000W/240V = 12.5A or 3000W/120V = 25A So, at 240 volts you will use 12.5 amps for 3000 watts of power. Or at 120 volts you will use 25 watts.
A 30 amp circuit on a 250 volt service could handle up to 7500 watts. That's if it's actually 250 volts coming in. You should check that with your meter.
To calculate the amperage, use the formula: Amps = Watts / Volts. For a 250 watt deicer on a 120 volt circuit, the amperage drawn would be 2.08 amps.
Depends on the voltage. AMPS X VOLTS = WATTS 250 Watts at 12 V would be about 21 Amps, while 250 watts at 120 volts would be 2.1 amps.
250 watts divided by 12 volts = amps or around 20 amps
About 2.25 Amps.
Watts is what you get by multiplying Amps times Voltage, so unless you know Voltage there's no way of telling. For 100 Volts you'd get 250 Watts at 1 amp, for 50 Volts you get it at 5 Amps, and so on.
The formula you are looking for is W = I x E, Watts = Amps x Volts.
For a resistive load Watts = Volta * Amps. Therefore, you have 1/4 amp or 250 Milliamps (250ma)
Using the equation Volts X Amps = Watts, you can take 3000 watts / Volts to get your answer: 3000W/240V = 12.5A or 3000W/120V = 25A So, at 240 volts you will use 12.5 amps for 3000 watts of power. Or at 120 volts you will use 25 watts.
The same number as 250 oranges is apples. A watt is a volt times an ampere.
A 30 amp circuit on a 250 volt service could handle up to 7500 watts. That's if it's actually 250 volts coming in. You should check that with your meter.
To calculate the amperage, use the formula: Amps = Watts / Volts. For a 250 watt deicer on a 120 volt circuit, the amperage drawn would be 2.08 amps.
10 amps 250 volts or 16 amps 250 volts.
To calculate the amperage, you can use the formula: Amps = Watts / Volts. If the heat lamp operates at 250 watts and is plugged into a standard 120-volt outlet, the amperage would be approximately 2.08 amps.