is used?How much energy will be used in one minute?
2006-09-11 18:56:50 · 7 answers · asked by xxgodsgift2youxx 1 in Science & Mathematics ➔ Physics
Ohm's law, V=IR or I=V/R
current I=3/12 = 0.25 amps
P = VI = 3 * 0.25 = 0.75 Watts
Energy = Pt = 0.75 * 60 seconds = 45 joules (watt-seconds)
2006-09-14 02:01:37 · answer #1 · answered by An electrical engineer 5 · 0⤊ 0⤋
I=V/R I=3/12=1/4
2006-09-11 19:39:01 · answer #2 · answered by foundation 3 · 0⤊ 0⤋
Assuming you mean resistance is 12ohms,
the current I = V/R = 3/12 = 0.25 Amps
The power would be VI = 3x0.25 = 0.75Watts
2006-09-11 19:04:30 · answer #3 · answered by cooldude 3 · 0⤊ 0⤋
V = I * R. V is Voltage,I is current and R is Resistance. V/R = I. Power is represented by this equation; P = I * V. Use these equations and the values you have. To find out.
2006-09-11 19:17:52 · answer #4 · answered by sandwreckoner 4 · 1⤊ 0⤋
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2016-12-12 06:55:52 · answer #5 · answered by pfarr 4 · 0⤊ 0⤋
all you have to do is follow Ohm's Law. Divide your resistance by your voltage and that will give you your Amperage or current. If you know your current and your resistance, multiply them and that will give you your volts.
2006-09-11 19:05:15 · answer #6 · answered by Ivan the Terrible 2 · 0⤊ 1⤋
12 ohms or how many ohms 12 resistors pls complete your question.
2006-09-11 21:20:15 · answer #7 · answered by dwarf 3 · 0⤊ 0⤋