If you have 14 watts, you have 14 watts of power. We measure electromotive force (EMF), which is commonly called voltage, in volts. EMF (voltage) is the force that will drive electron current flow, which is measured in amps. Simply put, power is current times voltage, or, said another way, watts is amps times volts. If you have 14 watts, you could have 14 amps at 1 volt, 7 amps at 2 volts, 2 amps at 7 volts, or any other combination of current and voltage with a product of 14. You may have picked up that because watts is amps times volts, we can say that a watt is a volt-amp. Extending that thinking, 14 watts is 14 volt-amps. There is no way to write 14 watts in volts, at least not without having a bit more information.
It is expressed in Volt-Amperes not Watts.
How many Amps is the fridge pulling? Multiply the Amps by the 120V circuit you're plugging into and you'll get your Watts.
When we look at transformers, we'll generally see that watts in will equal watts out. Said another way, volt-amps in equal volt-amps out. There is a simple relationship between the turns ratio between the primary and secondary and the voltages between those two windings. From there, it's a hop, skip and a jump to figuring out currents. In a one to one transformer, volts in equal volts out. Current in will equal current out, too. Watts in will equal watts out. In a step down transformer with, say, a 10:1 ratio, 120 volts in will produce 12 volts out. And a 1 amp secondary current will appear as a 0.1 amp current in the primary. The 120 volts x 0.1 amps = 12 watts. And the 12 volts x 1 amp = 12 watts. Volt amps in equals volt-amps out, and power in equals power out. Simple and easy. If you are using a step up transformer in, say, a 110 volt to 220 volt application, 110 watts in the primary at the 110 volts will be 1 amp. In the secondary side, 220 volts will appear and 0.5 amps will be the current flow. The 220 volts times the 0.5 amps is 110 watts, as asked about. The secondary has twice the voltage and half the current of the primary side. There are 110 watts in and 110 watts out. Again, simple and easy.
110 volts divided by 1,300 watts(1.3 kw) = .09 kw or 900 watts.
Question is incorrect. in a 240 Volt single phase circuit, how can you have A phase and B phase?
You need to know amps to answer this... Amps x Volts=watts
Since watts and volt-amps are different units of power, you cannot directly convert watts to volt-amps without considering the power factor of the load. In an ideal resistive circuit, 100 watts would be equivalent to 100 volt-amps. However, in practical applications with reactive components, the relationship between watts and volt-amps can vary.
Ohms does not equal watts. You need to know what voltage is across the resistor to determine how many watts it is drawing or how many watts the resistor should be rated for.Power is the voltage across the resistor SQUARED divided by the resistance. If this 4 ohm resistor has 12 volts across it then the watts power is (12 x 12) / 4 = 36 watts.1 Watt equals 1 Volt times 1 Amp.
770 watts.
1 kVA is equal to 1,000 volt-amperes. The conversion between volt-amperes (VA) and watts (W) depends on the power factor of the load. For resistive loads and a power factor of 1 (unity), 1 kVA is equal to 1 kW (kilowatt). However, for loads with different power factors, the relationship between kVA and kW varies.
Amps, volts and watts are interrelated, but you need to do a little math. Amps * Volts = Watts
In a direct current (DC) system, watts are equal to volt-amps. However, in an alternating current (AC) system, the relationship between watts and volt-amperes (VA) depends on the power factor of the system. The power factor is the cosine of the phase angle difference between the voltage and current waveforms.
Watts = Amps X Volts Grab your calculator!
Your 12 volt 2 amp battery charger draws 24 watts of power (12 volts x 2 amps = 24 watts).
To convert watts to amps, use the formula: Amps = Watts / Volts. In this case, 3000 watts divided by 240 volts equals 12.5 amps. Therefore, 3000 watts at 240 volts is equal to 12.5 amps.
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).
On a 12-volt system 1.6 amps is 12x1.6 watts, 19.2 watts