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In nodal analysis, we are interested in ﬁnding the node voltages.
Given a circuit with n nodes without voltage sources, the nodal analysis
of the circuit involves taking the following three steps. Steps to Determine Node Voltages:
1. Select a node as the reference node. Assign voltages
v1 , v2 , . . . , vn−1 to the remaining n − 1 nodes. The voltages are
referenced with respect to the reference node.
2. Apply KCL to each of the n − 1 nonreference nodes. Use Ohm’s
law to express the branch currents in terms of node voltages.
3. Solve the resulting simultaneous equations to obtain the unknown
node voltages. | v v We shall now explain and apply these three steps.
The ﬁrst step in nodal analysis is selecting a node as the reference
or datum node. The reference node is commonly called the ground since
it is assumed to have zero potential. A reference node is indicated by | e-Text Main Menu | Textbook Table of Contents | Problem Solving Workbook Contents CHAPTER 3 Methods of Analysis any of the thr...
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- Spring '12