Question

In the circuit given below, the number of node and branches are ______________

(a) 4 and 5

(b) 4 and 6

(c) 5 and 6

(d) 6 and 4

This question was posed to me in unit test.

The origin of the question is Series-Series Connection of Two Port Network in portion Two-Port Networks of Network Theory

Answer 1

The correct choice is (b) 4 and 6

Explanation: In the given graph, there are 4 nodes and 6 branches.

Twig = n – 1 = 4 – 1 = 3

Link = b – n + 1 = 6 – 4 + 1 = 3.