2007-12-11 08:03:33 · 10 answers · asked by ♥Why*Give*Your*Heart*To*A*Boy*?♥ 1 in Science & Mathematics ➔ Engineering
The apparant power is 120 V x 6 A = 720 VA.
The real power can not be determined without knowing the power factor or having some details regarding the applicance.
If the appliance is a purely resistive device (ex. toaster, coffee pot, etc) then the power factor is near unity (1.00) and the real power would be nearly 720 watts.
2007-12-11 10:40:51 · answer #1 · answered by Thomas C 6 · 1⤊ 1⤋
W.= V. x A. 120 Volts x 6 Amperes. = 720 Watts
2016-04-08 21:09:06 · answer #2 · answered by Erica 4 · 0⤊ 0⤋
Thankfully at least one of the other answerer's understands that power does not necessarily equal volts times amps in ac.
You cannot calculate power from your information. You could make an estimation but still need to know more information about the appliance and percentage of full load and take a guess at its power factor.
The only time power is equal to volts times amps is in a purely resistive load such as a heating element.
2007-12-11 08:32:56 · answer #3 · answered by Poor one 6 · 2⤊ 0⤋
Power = current multiplied by voltage, so if the appliance runs on 120 volts and draws 6 amps of current, the power is 720 watts (120 x 6 = 720).
2007-12-11 08:10:57 · answer #4 · answered by Anonymous · 0⤊ 3⤋
Well is rated at 120 V and 6 amps which implies 720 Watts
One tells you what voltage to connect it to
The other tell you what fuse ans size of cable to use
BUT that not necessarily the POWER since the voltage and current need not be "in -phase" so the power could be less
(power factor)
2007-12-11 09:30:51 · answer #5 · answered by Anonymous · 0⤊ 0⤋
it depends on the power factor,
but the most it could be pulling is 120 times 6
and that is 720W, and likely that will be near your actual number.
a watt meter would be better to use
like this one
http://www.amazon.com/P3-International-Kill-Electricity-Monitor/dp/B00009MDBU
update,
just read the other answers,
power does equal volts times amps.
but with AC power, the voltage and amps are chancing 60 times a second, so if the current is high when the voltage is low, it will not be drawing that much power, this is what caused the idea of "power factor" to be developed.
so, if you measure voltage and current, it is not so simple to get the power used.
the meter I left a web link for will figure it all out for you and just tell you the total power, the current, the voltage, or the power factor.
2007-12-11 08:13:38 · answer #6 · answered by sweety_atspacecase0 4 · 5⤊ 0⤋
Your "apparent power" is 120volts * 6 amps = 720 volt-amps.
Since your refrigerator is powered by a single phase induction motor, it is reasonable to assume your power factor is about 75% give or take.
The true power is therefore 720volt-amps * 0.75 per unit = 540 watts.
Note: Several good answers to this question are posted. I see somebody gave me a "thumbs down." Why?
2007-12-11 15:51:24 · answer #7 · answered by Anonymous · 0⤊ 1⤋
120 volts * 6 amps = 720 watts
2007-12-11 08:11:03 · answer #8 · answered by Gary H 6 · 0⤊ 3⤋
720
2007-12-11 08:59:14 · answer #9 · answered by Anonymous · 0⤊ 3⤋
voltage times amps equals watts. 1000 watts equals a kWh, what you are charged in on your bill. So 120 volts times 6 equals 620 watts. So you are using about a kWh every 2 hours.
2007-12-11 08:12:46 · answer #10 · answered by mishi h 2 · 0⤊ 5⤋