2007-05-02 11:54:36 · 6 answers · asked by ezmoney83 1 in Science & Mathematics ➔ Engineering
V=IR
which means, R=V/I = 120/20 = 6 ohms
P=R*I^2 = 6*20^2 = 2400 watts
2007-05-02 11:58:11 · answer #1 · answered by horrid 3 · 0⤊ 0⤋
I in the V/R/I triangle isn't Ohms at all.... I is Current measured in Amps. V is Voltage measured in Volts. R is Resistance measured in Ohms. Watts is Power and can be used in a similar equation. For example.....I=P/V I=2400/240 I=10A Showing that a 2400w appliance supplied with 240v draws 10A. Allowing for no current losses of course. This is simply the current demand for a given power supplied with a given voltage. So resistive loads only, let's not get into power factor correction.
2016-05-19 01:29:04 · answer #2 · answered by ? 3 · 0⤊ 0⤋
R=V/I 120/20=6ohms
P=I X V, 120X 20=2400watts
2007-05-02 12:00:42 · answer #3 · answered by Mike B 5 · 0⤊ 0⤋
resistance=voltage\ amperage so resistance=120\20=6ohms and power=amps*volts so power=120*20=2400 watts
2007-05-02 13:49:31 · answer #4 · answered by Dr. Eddie 6 · 0⤊ 0⤋
you can always multiply amperage by voltage to get wattage!
however the first 2 guys got the rest of the formula!
2007-05-02 12:08:28 · answer #5 · answered by the one and only robertc1985 4 · 0⤊ 0⤋
6 ohms, 2.4 kw. but this for dc or rms ac in a resistive load only.
2007-05-02 14:05:24 · answer #6 · answered by scott p 6 · 0⤊ 0⤋