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Ohm's law states that you could calculate the current (Amp), resistance (Ohm), or voltage (Volt) as long as you know the other two. Watts is not part of this law. Therefore, your question does not give enough information.

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14y ago
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14y ago

You need to know the Resistance of what ever you are trying to find the currect for.

Ohms Law is Voltage = Current x Resistance

This applies for Real or pure resistive loads and does not directly apply for inductive of capacitive loads. That gets more indepth with lagging and leading Power Factors.

So generally a resistance is fixed, so if the voltage drops, the current will increase and Vice Versa. Hope this helps

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10y ago

Divide the square of the voltage by the resistance. This applies to both a.c. and d.c., as no power factor is involved.

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13y ago

The simple formula for calculating amps, volts or watts is:

Amps * Volts = Watts

If you know any two in the equation you can always calculate the third.

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13y ago

Simple Ohm's law. Volts multiplied by amps equals watts. 120v x 12a = 1440 watts.

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11y ago

By dividing the power in watts by the power factor of the load.

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10y ago

The equation used to find amperage when amps and voltage are given is I = W/E. Amps = Watts/Volts.

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15y ago

watts = amps x volts

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Q: How do you work out amps from watts and voltage?
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Related questions

You were given aload 2500 watts how much it draw amps?

Watts = Amps x Volts. Amps = Watts/Voltage. Amps = 2500/apply voltage here.


How voltage is 350kv to watts?

You multiply volts by amps to get watts. What are your amps?


37.5 amps converted in watts?

To convert amps into watts a voltage is needed. Watts = Amps x Volts.


How Many Amps is 1400mA?

watts = amps (times) voltage watts (divided by) voltage = amps 140 (div by) 120 = 1.66 140 (div by) 125 = 1.12


How many amps does 3000 watts pull?

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.


250 watts is how many 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.


How many watts is 5 amps?

600 This depends on the voltage Voltage x Amps = Watts ex. At 120 volts 5 amps WILL BE 600 watts But at 110 Volts (Some house voltage), it will be 550 watts And at 277 Volt (commercial-Industrial Voltage), it would be 1385 Watts If you know Watts (Like a 75w Incandescent Lamp) and the Voltage: Watts / Volts = Amps So 75w / 120v = 0.625a The last would be Watts / Amps = Volts 600w / 5a = 120v


Amps to watts?

Watts = Amps x Volts Amps = Watts / Volts you only need to know two of the three to work out the other so 230 volts at 10 amps gives 2300 Watts (2.3 kW) 2.3kW at 230 volts draws 10 Amps


How many watts in 12.5 amps?

The number of watts for 12.5 amps is 12.5 times the voltage.


125 amps is how many watts?

Depends on the voltage output, in a 12 Volt system 12.5 Amps equals 150 Watts, the equation is, (Amps x Volts)= Watts <<>> 12.5 amps is zero watts. Watts is the product of amps x volts. Without the voltage value an answer can not be given.


How many amps in Mega Watt?

One Megawatt = 1,000,000 watts. Watts = Volts x Amps or voltage x current. Hence if you know the voltage then Amps = 1,000,000 watts / Volts.


How many Watts are in 730 amps?

There are zero watts in 730 amps. Watts is the product of amps times volts. As you can see without a voltage no answer can be given.