railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Network Theory Network Elements Nodal Analysis
A network has n nodes and m independent loops. The number of branches ‘b’ in the network is given by:
1
b = m + n − 1
2
b = m − n + 1
3
b = m + n + 1
4
b = m − n − 1