Tag Archives: KCL

Superposition method - Circuit with two sources

Find I_x using superposition rule:
Main cuircuit to be analyzed using superposition method

Solution

Superposition

The superposition theorem states that the response (voltage or current) in any branch of a linear circuit which has more than one independent source equals the algebraic sum of the responses caused by each independent source acting alone, while all other independent sources are turned off (made zero).
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Problem 1-12: Using Voltage Sources to Determine Node Voltages


Determine the power of  R_1, R_2 and  Vs_1. (Hint: there is no need to use nodal analysis; voltages between nodes can be easily found by the voltage sources.)
Voltage sources can be used to fing node voltages

Solution
KVL around the loop
 V_{R_1}= Vs_1 = 10v \rightarrow P_{R_1}=\frac{V_{R_1}^2}{R_1}=50 W
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Problem 1-11: Solving a Circuit with Three Nodes by the Nodal Analysis


Solve the circuit by nodal analysis and find the power of  Is_1 .
Circuit with Three Nodes - Solving with the Nodal Analysis

Solution
a) Choose a reference node, label node voltages:
Choosing a reference point and lebelling nodes for the nodal analysis
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