If Ampere is a unit of power and Volt a unit of force ,what is the Watt a unit of?
474968
The Watt is a unit of Power.\n\n(I'm pretty sure P does not equal vf though)\n\nEDIT - No you're right. I had to work it out for my own peace of mind though!\n\np=e/t\nw(e)=fd\np=fd/t\np=f(d/t)\np=fv
1142478
It is the SI unit of energy. It is also the unit for work in physics (force times distance). But I don't get the rest of your question.
316890
ok well work is force x distance. and work is just difference in energy so if you take initial energy to be 0, energy is equal to force x distance.\nnow 170 pounds is about 77.27kg and the force is 757.27N. the distance is 16 miles = 25.75km so the energy is 19499.397 J. now a Watt is 1J/s. so 1W * 1s = 1J. so 19499.397J = 19499.397W-s. = ~19.5kW-s. multiply this by 1h/3600s (which is 1 cuz theyre equivalent) and you get 0.005416666 kw-h. \n\nhope you understand that. let me know if you need more help
657313
W/m*K = Watt/(meter*Kelvin)\n\nPower per unit length per unit temperature\n\nWhere power is defined as energy per unit time.
63880
It is the energy possessed by a moving electron through a potential difference of 1 volt.\nThis is the unit of energy in atomic Physics.\n2.247x10^25 ev units are equal to 1 kWh.
934641
If a voltage spec (v volts) is given on the resistor, then the power\nrating, p = v^2/r  ( r = resistance in ohm, you already know).\n\nIf v is not given then the only way is to connect the resistor to the poles of a battery cell via an Ammeter, and see the electric current measurement in ampere (say, i amperes).\n\nThen p = i^2 x r  (p, in watts).
657790
They are not proportional.  Watts are units of power, volts are not.  Similarly, you can't ask "how many kilometres per hour are in a kilogram?"\n\nIn direct current conditions, the power expended in a device (in Watts) is equal to the voltage across the device (in Volts) times the current passing through the device (in Amperes).
349215
mechanical power, P = Work done per unit time = W/t\n\nElectical Power P = current times potential difference = IV\n\nfor ohmic devices we can also use the substition from Ohm's law V = IR in the power formula above.
2752
A. Potential energy = Force * Distance\n     = (50 * 9.8) * 10\n     = 4900 J\nB. Power rating = Energy / time = 4900 / 5 = 980 Watts
739568
Three  terms you need to know are:\n\nVoltage- This is the "potential" to make current flow through \n                a wire.  (measured in volts)\nCurrent- This is the actual electrons or "electricity"  which \n               "flows" through the wire. (measured in amperes or amps)\nResistance- This is the quality of a substance which tends to \n                      allow or inhibit the flow of electricity.\n\nOne more term is power. This is measured in Watts and is \n given as 1 Watt=(1 volt)(1 amp)\n\nHere's how it works.  You put a voltage across a wire.\nYou decide the voltage.  It does not change.  The wire and bulb has "resistance" and only lets a certain amount or current flow.  The current flows through the bulb and lights the bulb.\n So both 100 watt bulbs and 40 watt bulbs have the same \n120v "voltage".  The difference  is that less current flows through the 40 watt bulb, so it is dimmer.\nRemember that power or "Watts" is current  times voltage.\nso lower wattage means lower current.\nThe question should be how much current does each bulb use.\nThe answer is: 100 watt-5/6 amp\n60 watt- 1/2 amp\n40 watt- 1/3 amp
291872
Volts is a unit of measure for Voltage\nAmps is short for Amperes and is a measure of Current\nWatts is a measure of Power\n\nNow Voltage, Current and Power are related quantities but not equivalent quantities. The relatioship is as described in the previous answer: Power=Voltage*Current\n\nSo Watts = Ampere * Volts\n\nAsking how many watts in a volt is like asking how many seconds in a meter
750330
The unit would be the volt: http://physics.nist.gov/cuu/Units/units.html
224197
Amps and volts, while correlated, are different characteristics of electricity. You can determine one from the other, but you can't convert one into the other.\n\nHaving said that, here's OHM's law: \n\nV=I x R, where V is volts, I is Amps and R is resistance.
204153
You should distinguish between power and engergy. A watt or kilowatt is a unit of power. It does not make sense to associate a cost with a unit of power, as you also need to know how much time was spent absorbing this power.\n\nEnergy on the other hand (with units like the kilowatt-hour or the joule) does incorporate information about time. A kilowatt-hour of energy, for example, would be enough energy to provide 1 kilowatt of power over a period of 1 hour. Energy costs about 5-8 cents per kilowatt-hour.
416798
105W\n\nA transformer changes the voltage, but inversely alters the current to the same degree. Therefore, using P=VI, the power is always the same.
514134
i think this is the equation\nE=VxI\nE is energy. V is volts . I is current which is measured in Amps\nE= 120 x 12.5\nE=1500Watts
621328
ohm, V/m, Amp  <--- with the exception of flux, those units were set as those by the SI