1.1J/40
2.1J/80
3.1J/20
4. Can’t be determined
2007-05-07 00:57:25 · 7 answers · asked by ajith k 1 in Science & Mathematics ➔ Physics
E=I*R
6v=I*24ohms
I=6/24=0.25 amp.
watts=I*E=0.25*6=1.5w.
A watt-second is one joule so 1.5 watts for 60 seconds is 90 joules.
Please note: I know of no cell that produces 6v. A battery of cells might.
2007-05-07 01:13:47 · answer #1 · answered by J C 5 · 1⤊ 0⤋
I looked up joule, and it's defined as the heat energy produced in a wire, which is I^2 x Resistance. So like the other answerer, all I can come up with is 90 J.
2007-05-07 10:13:41 · answer #2 · answered by Anonymous · 0⤊ 0⤋
its 1/40 joule
energy is given by v^2/(r*t)=6^2/(24*60)=36/1440=1/40 J
2007-05-09 00:16:57 · answer #3 · answered by jacky66 1 · 0⤊ 0⤋
I=E/R I=24/8=3 P=I(SQ) R P=9X6=54
I would go for answer 2
2007-05-07 01:10:36 · answer #4 · answered by Anonymous · 0⤊ 1⤋
Use the energy conversion table to verify the answers yourself. Make sure you enter the correct value under the appropriate heading.
http://www.uccs.edu/~energy/courses/energyconv.html
2007-05-07 07:07:44 · answer #5 · answered by Anonymous · 0⤊ 0⤋
w=v^2t/r
w=6*6*60/24
w=90J
2007-05-10 20:09:34 · answer #6 · answered by vipul_teen007 2 · 0⤊ 0⤋
15J
2007-05-07 01:20:04 · answer #7 · answered by Rinki 2 · 0⤊ 1⤋