- #1
GreenPrint
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Homework Statement
http://img130.imageshack.us/img130/2366/capturewvb.jpg"
Homework Equations
V=IR
The Attempt at a Solution
Given Information
V I R
Battery
R1 12 V 2 ohm
R2 4 ohm
R3 24 V 4 ohm
R4 8 ohm
I can calculate the current of R1
V = IR
I = V/R
I = 12 V/2 = 6 A = I1
pl if I'm correct sense R1 and R2 are in parrallel and right next to the battery they should share the same voltage?
R2 = 12 V
from which I can calculate the current
V = IR
I = V/R = 12 V / 4 ohm = 3 A = I2
now the current for the whole batter should just be I1 + I2? = 6 A + 3 A = 9 A = I battery
I can fidn the R battery by doing
(1/R1 + 1/R2)^-1 + (1/R3 + 1/R4)^-1 = (1/2 + 1/4)^-1 + (1/4 + 1/8)^-1 = 4 ohm = R battery
am i doing this right were do i go from here?
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