Electric Circuits - Superposition and Mesh Analysis

Victor Feitosa · Jun 15, 2016

Homework Statement

Exercise 4.15 on the image.

Circuit schematic for Figure 4.83: a 20 V source with a 2 Ω resistor in series on the left branch, a 1 Ω resistor and a 2 A current source in parallel on the top middle branch, a 3 Ω resistor carrying current i downward in the centre, a 4 Ω resistor and a 16 V source on the right branch.

The exercise asks for the value of the current I using superposition

Homework Equations

Superposition theorem, nodal and mesh analysis

The Attempt at a Solution

Handwritten superposition analysis of a resistor network with three parts: a 2A source contribution giving I = 1A, a 20V source contribution giving I = 2.5A, and a 16V source contribution giving I = -1A, summed to a total of 2.5A.

I think i am doing the mesh analysis wrong, but can't see where. Can someone give me feedback?

Thank you, ppl!

NascentOxygen · Jun 16, 2016

Where the 2A current divides---some goes through the 2Ω and some goes through the 3Ω---these will not be equal currents.

I anticipate that when you take a closer look at this part of your working you will spot your mistake.

Electric Circuits - Superposition and Mesh Analysis

Homework Statement

Homework Equations

The Attempt at a Solution

Discussion

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