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work is done at a rate of one watt when one ampere flows through a potential difference of one volt.
volts x amps = watts
So 1 watt is any ratio of volts x watts that equals 1.
1volt x 1amp = 1 watt
or
9v @ .11 amps = 1 watt
For "ratio of volts x watts" above read "product of volts x amps".
True for resistive loads. Beware reactive loads (capacitors and inductors) where current may not be in phase with the voltage. For a quarter cycle phase lag, the power is actually zero even if the current and voltage are large. Power Stations do not like supplying current to reactive loads.
AnswerIn AC, the product of current and voltage is called the apparent power of a load, and is measured in volt amperes. The watt is the unit of true power which is the product of current, voltage, and power factor (where power factor is the cosine of the phase angle) of a load.
One volt ampere is equal to one watt only when the current and voltage are in phase, which is the situation with a purely-resistive load. For all other loads, the true power is less than the apparent power (i.e. watts < volt amperes).
The equation you are looking for is the product of votage and amperage is equivalent to the watts ( power ). V x A = W ; where v is volts, a is amperes and w is watts. Any combination of volts and amps whose product is 1 will give you 1 watt. Double check your equipment, often watts are given as KW or kilowatts; that's 1000 watts.
An ampere is a unit of charge flow rate, while a watt is a unit of energy flow rate. The two units are not directly convertible.
More specifically, one ampere is one coulomb per second, while one watt is one joule per second. If you knew how many volts were involved, you could compare, because volts is joules per coulomb.
In a dc system the power (watts) is just equal to the volts times the amps. In an ac system another factor comes in, the power factor, so the power is the volts times the amps times the power factor, which is never more than 1.
It happens when the volts and the amps are not in exactly in phase, in other words they do not peak together. That happens when the load contains components (capacitance or inductance) that can store energy temporarily. There is a part of the ac cycle when the voltage has reversed when the current has not yet reversed (or vice versa), and that causes some power to flow back from the load to the generator. Therefore the net average power is less than the volts times the amps.
This is important because the transmission of power is limited by the voltage and the current. The insulation has a maximum voltage rating, and the wires have a maximum current rating. So even though a load might have a low power factor it still puts demands on the transmission system. In particular a load that draws a large current causes losses in the resistance of the transmission lines even though its power factor might be small.
Transmission components are rated according to the maximum voltage times the maximum current, which is volt-amps or VA, which can be extended to kVA or MVA.
1 watt might equal 1 VA for a resistive load, but for many types of load, especially induction motors, the power factor is lower, usually about 0.75 so that 1 VA equals 0.75 watts.
There are zero volts and watts in one amp. Amps are the result of watts divided by amps. Amps = watts / volts. So if 120 volts and 120 watts were used the result would be equal to 1 amp (120/120 = 1). At 12 volts, 12 watts would = 1 Amp. in other words for any given voltage, the same number of watts = 1 amp.
One watt is equal to one volt multiplied by one ampere. Therefore, one watt is equivalent to one volt multiplied by one ampere (1 W = 1 V x 1 A).
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How many watts in one ampere?
One ampere is equal to one watt in a system with a voltage of one volt. This relationship is defined by Ohm's Law, which states that power (in watts) is equal to current (in amperes) multiplied by voltage (in volts).
How many volts equal one watt of power in one second?
Zero volts equal one watt. Watts is the product of amps times volts. Without an amperage the voltage can not be calculated. The time constant has nothing to do with the equation.
1amp how many watt is it?
1 ampere (1A) is equivalent to 1 watt (1W) when operating at a voltage of 1 volt. The relationship between amperes, watts, and voltage is given by the formula: power (in watts) = voltage (in volts) x current (in amperes).
How many amp in 4000 watts with 120 volts?
There is not enough information to answer your question directly... In order to determine how many volts it takes to make 4000 watts, you also need to know how many amperes there are. That is because watts is volts times amperes. For example, if you had a 120V system, you could divide 4000 watts by 120 volts to get 33 1/3 amperes.
How many amphere in a watt?
There is no direct conversion between amperes and watts since they are different units used to measure different things. Amperes measure the rate of flow of electric current, while watts measure power. The relationship between the two depends on the voltage in the circuit using the formula: Watts = Volts x Amperes.
How many amperes in a watt and how many watts in a volt?
Amps, volts and watts are interrelated, but you need to do a little math. Amps * Volts = Watts
How many watts in one ampere?
One ampere is equal to one watt in a system with a voltage of one volt. This relationship is defined by Ohm's Law, which states that power (in watts) is equal to current (in amperes) multiplied by voltage (in volts).
How many amp in 10000 watt 220 volt?
10000 watts / 220 volts = 45.4545 amperes
How does 1 milliwatt get defined?
Watts is amperes times volts. There are one thousand milliwatts in a watt. Milliwatts, then, is milliamperes time volts, or amperes times millivolts, or something equally consistent.
How many volts equal one watt of power in one second?
Zero volts equal one watt. Watts is the product of amps times volts. Without an amperage the voltage can not be calculated. The time constant has nothing to do with the equation.
1amp how many watt is it?
1 ampere (1A) is equivalent to 1 watt (1W) when operating at a voltage of 1 volt. The relationship between amperes, watts, and voltage is given by the formula: power (in watts) = voltage (in volts) x current (in amperes).
How many amp in 4000 watts with 120 volts?
There is not enough information to answer your question directly... In order to determine how many volts it takes to make 4000 watts, you also need to know how many amperes there are. That is because watts is volts times amperes. For example, if you had a 120V system, you could divide 4000 watts by 120 volts to get 33 1/3 amperes.
How many amphere in a watt?
There is no direct conversion between amperes and watts since they are different units used to measure different things. Amperes measure the rate of flow of electric current, while watts measure power. The relationship between the two depends on the voltage in the circuit using the formula: Watts = Volts x Amperes.
What could you run from a 500 watt 2 amp feed?
A device designed to run on 250 volts at up to 2 amperes.
One watt is equal to how many voltage?
The watt is a measurement of work done by an object at constant velocity and under constant force. 1 watt, therefore, is equal to 1 Joule per second.
How to convert ampere if 'X' watt of electrical equipments at 'Y' volt consumes per hour?
You can convert amperes by using the formula: Amperes = Watts / Volts. To find out how much current 'X' watt of electrical equipment at 'Y' volt consumes per hour, you would need to divide the wattage by the voltage to get the amperes, and then also consider the duration of the consumption in hours.
How many amps equal to 1 watt?
It depends on the voltage of the circuit. In a 1-volt circuit, 1 amp is equal to 1 watt. In a 10-volt circuit, 0.1 amp is equal to 1 watt. Ohm's Law (P = IV) can be used to calculate the relationship between amperes, watts, and volts in a circuit.
