
#1
Oct1205, 09:58 PM


#2
Oct1305, 05:06 AM

P: 255

Can't see your image 'cause it's pending approval...is there any way you can just host it on imageshack and post up a link??




#3
Oct1305, 11:04 AM

P: 2





#4
Oct1305, 02:58 PM

Emeritus
Sci Advisor
PF Gold
P: 6,238

stumped on a resistance problem
The trick is to call the potential difference between a and b, V.
This leads, for each branch, to an equation: I1 = (V  E1) / 2 R1 I2 = (V  E2) / R2 I3 = (V  E3) / 2 R1 (that's the total potential difference per branch over the total resistance over each branch). We have one further equation (Kirchhoff): I1 + I2 + I3 = 0. This system of 4 equations has 4 unknowns: V, I1, I2 and I3. cheers, Patrick. 


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