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  • #1
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Homework Statement


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Consider the circuit above. You are given the following measured values:
V = 1.5 V
R1 = 100
omegacap.gif

R2 = 100
omegacap.gif

R3 = 50
omegacap.gif

R4 = 50
omegacap.gif

R5 = 50
omegacap.gif


Homework Equations


Kirchhoff's Loop Rule and Junction Rule

The Attempt at a Solution



I tried setting this up using the junction and loop rule.
At the first junction (between R1 and R3), I have I1 = I2 + I3. At the second junction, after R5, I have I5 + I2 = Io (Io is the current entering the battery again).
I do not understand what the loop rule should be written as and then how to put it all together. Please help!
 

Answers and Replies

  • #2
ehild
Homework Helper
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Your I5 and I3, and also Io and I1 are related - how?

What does the Loop Rule state?
 
  • #3
30
1
The loop rule states that the sum of the potential differences around the circuit is 0. Is I3 = -I5? And also I1 = -Io?
 
  • #4
ehild
Homework Helper
15,427
1,824
The loop rule states that the sum of the potential differences around the circuit is 0. Is I3 = -I5? And also I1 = -Io?
The loop rule states that the sum of potential differences is zero around a loop.

I3 = - I5 would mean that the current flows into R4 from both sides and the charges accumulate there. Is it possible? The current flows through a resistor, enters at one terminal and leaves at the other. What do you know about the current flowing through resistors connected in series?
 

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