Basic Engineering Circuit Problem 2

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SUMMARY

The discussion centers on solving for the current I_{1} in a circuit where the equation I_{1} + 4 mA = 2 mA is established. The solution derived is I_{1} = -2 mA, indicating a negative current flow. Participants note the presence of two unknowns in the circuit, suggesting the need for an additional equation to accurately solve for I_{1} and the current through the resistor between the 2 mA and 12 mA legs.

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Homework Statement


Find I[itex]_{1}[/itex] in the circuit

Homework Equations


The Attempt at a Solution


I[itex]_{1}[/itex] + 4 mA = 2 mA
I[itex]_{1}[/itex] = -2 mA
 

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DrunkApple said:

Homework Statement


Find I[itex]_{1}[/itex] in the circuit


Homework Equations





The Attempt at a Solution


I[itex]_{1}[/itex] + 4 mA = 2 mA
I[itex]_{1}[/itex] = -2 mA

This problem looks to have 2 unknowns. You aren't given the current flowing through the resistor on the left between the 2mA and 12mA legs. I would think you would need to write 2 equations to solve for I1 and that unknown current, but I could be wrong.
 

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