Engineering Help with intro circuit analysis problem Thevenin and max power prob

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The discussion centers around solving a circuit analysis problem using Thevenin's theorem and mesh analysis. The original poster attempted to derive mesh equations but faced confusion regarding the correct formulation and the role of the current source Io. It was clarified that Io is a fixed source and should not be treated as a mesh current, leading to the suggestion of renaming mesh currents to avoid confusion. The conversation also emphasized the need to express the mesh currents in terms of Io and the importance of correctly accounting for voltage drops across resistors. Ultimately, the goal is to derive expressions for the currents and Thevenin parameters to analyze the circuit effectively.
  • #31
gneill said:
No, you'll get an expression for I3 in terms of RL and Io. That expression will allow you to pick out the Thevenin voltage and resistance. With the Thevenin resistance you known the value of RL that will maximize the power delivered to RL.

When we solve for i3 we will have two unknown variables in it right? Rl and Io
 
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  • #32
nchin said:
When we solve for i3 we will have two unknown variables in it right? Rl and Io

Yes. But we have the advantage of knowing something about RL and its relationship to Rth for maximum power transfer, regardless of the value of Io. As I stated previously, we can pick out Rth and Vth from the result of finding the expression for i3*RL.
 

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