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![[Post New]](/templates/default/images/icon_minipost_new.gif) 29 Jun 2008 09:42:41 IST
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 CURRENT THROUGH CIRCUIT ' i ' IS 0.5 A .
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29 Jun 2008 09:49:41 IST
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for defining potential we need to take a refrence point......if we take
Va=0
den
Vo=-1V
and Vb==0
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nobody is wrong
even a stopped clock is right twice a day |
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29 Jun 2008 09:52:19 IST
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CURRENT FLOWS FROM HIGHER POTENTIAL TO LOWER POTENTIAL THEN HOW DOES IT FLOW FROM O TO B ??
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COPYRIGHT :
The copyright for the facts written above is held by x4
no part of the facts may be reproduced , stored in ur memory , or transmitted by any means without pror written permission from x4
****VIOLATERS ARE LIABLE FOR PROSECUTION UNDER THE " X4 GOIIT ACT 2008 ".**** |
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29 Jun 2008 10:12:28 IST
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hey man b is at lowe potential than o..
if Va=0, then
Vo=0
Vb=0
current flows through the resistor bbecause therre is a potential difference across it..so where is the problem?
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B.Tech CSE, ISMU |
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29 Jun 2008 11:22:09 IST
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Use mesh analysis.
-2i + 1 + 1 - 2i + 1 - 2i = 0
3 = 6i
i = 0.5A
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Will nip in at times to solve problems :)
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29 Jun 2008 11:30:09 IST
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Its a pretty simple question. What's the problem in solving it? :O
All the 3 batteries are in series and all the 3 resistors are in series.
So, net V = 3V
Net R = 6
I=V/R
=3/6
=0.5 A
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29 Jun 2008 19:29:09 IST
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in the circuit u have va = vb = vc then why does current flow ???what is potential at o ?????
if it is lower than that at a then why shud current flow from o to b
as then b is at higher potential than o ?????????
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COPYRIGHT :
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29 Jun 2008 19:33:22 IST
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Yaar, see the circuit on a whole.
As a complete circuit, it doesnt have 3 batteries and 3 resistances. It effectively has a single battery of 3 V and a single resistor of 6 ohms. So there is a NET potential difference across a resistor. So the current flows.
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The quality of a person's life is in direct proportion to their commitment to excellence, regardless of their chosen field of endeavor.
It is during our darkest moments that we must focus to see the light.
Check out my blog at:
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Posts:
Can marks really judge a student??
Some myths about Chemical Engineering.
(A must see for every student)
Back to goiit, this time with Baby Veerappan. :D |
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29 Jun 2008 19:41:00 IST
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If u want to solve it analytically, I have shown this in figure.
Assume potentials at A = V, B = V', C = 0
Hence, P.D. across the resistor AB = (V+1) - V'
P.D. across the resistor BC = V' - (-1)
P.D. across the resistor AC = V - 1
Hence, there is some potential difference across each resistor. If U make an equation and solve it, u will get the same answer(although it wud be foolish to do so. This will convert a 2 line question into a full page length ques).
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The quality of a person's life is in direct proportion to their commitment to excellence, regardless of their chosen field of endeavor.
It is during our darkest moments that we must focus to see the light.
Check out my blog at:
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Posts:
Can marks really judge a student??
Some myths about Chemical Engineering.
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29 Jun 2008 21:40:35 IST
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@x4
my prevous post is correct and it doesn"t refquire modification..
see
potential at any point is subject to change according to the choice of reference point..
see for current to flow through a resistor a potentail difference is required across its two terminals ..which is available in this case..hence current flows through the resistor..
and finally o is at higher potential than b...
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B.Tech CSE, ISMU |
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12 Jul 2008 17:34:49 IST
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if Va=0, then
Vo=1V
Vb=0
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B.Tech CSE, ISMU |
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