Question

If there are N nodes in a circuit, then the number of nodal equations that can be formed are?

(a) N+1

(b) N

(c) N-1

(d) N-2

This question was posed to me in an online interview.

This question is from Nodal Analysis topic in section Steady State AC Analysis of Network Theory

Answer 1

The correct answer is (c) N-1

To explain I would say: If there are N nodes in a circuit, then the number of nodal equations that can be formed are N-1. Number of nodal equations = N-1.