2007-01-08 06:57:12 · 13 answers · asked by HAYLEY D 1 in Science & Mathematics ➔ Engineering
You're going to need circuit resistance and voltage to work this out. If I remember correctly the answer will be in coulombs.
2007-01-08 07:00:28 · answer #1 · answered by Anonymous · 0⤊ 0⤋
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2016-11-27 20:22:09 · answer #2 · answered by donenfeld 4 · 0⤊ 0⤋
You can't work that one out as you don't give the voltage. The quantity of electricity is Joules per Second or kilowatts per hour.
You have given the time as 10 minutes
The Current as 2mA
Watts = Volts x Amps
Say the Voltage is V then
Watts = Amps x Volts(V)
10 minutes = 600 seconds
2007-01-11 09:43:35 · answer #3 · answered by Andy S 2 · 0⤊ 0⤋
The amount of electricity is measured in Coulombs and is calculated by multiplying current by time. 10 minutes is 600 seconds so the amount of electricity passed in 10 minutes is 2mA x 600 seconds, which is 1.2 Coulomb.
2007-01-08 07:04:50 · answer #4 · answered by Martin 5 · 2⤊ 0⤋
The quantity of electricity will be measured in coulombs. Remember that one amp is one coulomb flowing past a point per second.
So, we take 0.002 amps times 10 * 60 seconds = 1.2 coulombs.
Check units. since amp = coulomb per second, seconds cancel out in the above equation and you're left with coulombs.
Have fun with the rest of your homework.
2007-01-08 07:06:05 · answer #5 · answered by vrrJT3 6 · 0⤊ 0⤋
Hayley, you need more information to calculate the amount of electrical energy (or, actually, POWER), in this circuit.
The amount of Power consumed within a circuit (in Watts) is equal to the Voltage applied to the circuit, multiplied by the Current consumed within the circuit. The answer is then multiplied by the time involved to give an answer in KWH (kilowatt hours), so you need to know the voltage to be able to answer this question.
2007-01-09 06:34:04 · answer #6 · answered by robert k 1 · 0⤊ 0⤋
Is 0.33333333 mAhr approx or 1.2 coulomb.
1 Coulomb is 1amp/sec or 1/360 amp hour (Ah)
Coulomb not fit SI well units so Ah used for measure this instead.
Coulomb more use in atomic size charged particle than practical electric units
2007-01-08 13:37:39 · answer #7 · answered by Anonymous · 0⤊ 0⤋
10 minutes is 1/6 of an hour.
so you get 2 mA x 1/6 hr = 1/3 mA.h
In Coulomb, knowing that 1 A.h = 3600C,
you get 1/3000 x 3600 = 1.2 Coulomb
2007-01-08 07:03:53 · answer #8 · answered by catarthur 6 · 2⤊ 0⤋
Q (coulombs)
A (current in amps)
t (time in secs.)
Q = A x t = 2 x10^(-3) x 600 = 1200 x 10^(-3)
Q = 1.2 coulombs
2007-01-09 01:55:09 · answer #9 · answered by Como 7 · 0⤊ 0⤋
you need to know the voltage too
multiply voltage by amps to get watts
multiply by minutes to get watt-minutes
1000 watts for one hour is a kilowatthour (kwh) as shown on your household electric meter
for just the amps it would be 20 milliampminutes mAm
2007-01-08 07:02:17 · answer #10 · answered by brainiac 4 · 1⤊ 0⤋