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Definitions
Mesh
Essential Branch
Example 4.4
Step 1: Determine # of mesh currents
be=5ne=3# of equations: be-(ne-1)=5-(3-1)=3
Step 2: Apply KVL around each mesh
Solve 3 EQ and 3 Unknowns Using Mathematica
Get Mathematica Through SSU
Example 4.5
Step 1
# of essential branch: 6# of essential nodes: 4# of equations: 6-(4-1)=3
Step 2
See in the handout.
Use Mathematica to Solve Equations
Format: Solve[{equations separated by a comma},{list of unknowns}]To solve an equation: Evaluation→Evaluate Cells
Figure 4.25
A branch includes a current source!
Solve Using Mathematica
Supermesh
Mentally remove the current source from the circuit by avoiding the branch when writing the mesh current equations.