For the circuit shown, Find the number of nodes and

number of independent equations used for analysis of circuit using nodal analysis.

A Three Nodes and Three independent equations. Correct Answer Incorrect Answer

B Three Nodes and Two independent equations. Correct Answer Incorrect Answer

C Two Nodes and Two independent equations. Correct Answer Incorrect Answer

D Two Nodes and Three independent equations. Correct Answer Incorrect Answer

Solution

A node is a junction where two or more elements connect. In nodal analysis, the number of independent equations = (Number of nodes – 1), because one node is always taken as the reference (ground). So total nodes = 3 . Independent nodal equations = 3 – 1 = 2 .