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 Post subject: Basic circuit analysis
PostPosted: Thu, 29 Jun 2017 19:03:01 UTC 
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For the part of the circuit of sinusoidal circuit given below, the following data is given (effective values): E=10V,I_g=2\sqrt 3 A,I_2=2A.

Impedance of conductor is Z_C=5\Omega.

Current I_g is leading in phase with regards to E for 2pi/3, and E is running late in phase with regards to I_2 for \pi/2.

Evaluate effective value of voltage U_{10}.

Image

I think that the following intuitive solution is completely incorrect:

By using potential of nodes method on branch 1-0, if we set 0 node as referent, we have:
\underline{V_1}\frac{1}{\underline{Z_C}}=\frac{\underline{E}}{\underline{Z_C}}\Rightarrow \underline{V_1}=\underline{E}

Could someone explain why this solution is incorrect?

What is a correct approach?


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