The graph of a network has 8 nodes and 5 independent loops. The number...
Concept:
Nodal Analysis:
Nodal analysis is a method of analyzing networks with the help of KCL equations.
For a network of N nodes, the number of simultaneous equations to be solved to get the unknowns
= Number of KCL equations
= N - 1
Mesh Analysis:
Mesh analysis is a method of analyzing networks with the help of KVL equations.
For a network having N nodes and B branches, the number of simultaneous equations to be solved to get the unknowns
= Number of KVL equations
= number of independent loop equations
= B - N + 1
Where, B = no of the branch, N = No of node
Calculation:
Given that,
Number of nodes (N) = 8
Number of independent loops (L) = 5
Let the number of branches are B.
We know that,
L = B – N + 1
⇒ 5 = B – 8 + 1 ⇒ B = 12
The graph of a network has 8 nodes and 5 independent loops. The number...
Graph of the network
The graph of the network consists of 8 nodes and 5 independent loops. To determine the number of branches in the graph, we need to understand the concept of branches and loops in a network.
Branches and Loops
In a network, a branch refers to a single element, such as a resistor or an inductor, that connects two nodes. It represents a single path through which current can flow.
A loop, on the other hand, refers to a closed path in a network that starts and ends at the same node. It can be formed by a combination of branches.
Calculating the number of branches
To calculate the number of branches in the given graph, we can use the formula:
Number of branches = Number of nodes - Number of independent loops + 1
In the given graph, we are given that there are 8 nodes and 5 independent loops.
Substituting these values into the formula, we get:
Number of branches = 8 - 5 + 1 = 4 + 1 = 5
Therefore, the number of branches in the graph is 5.
Answer
The correct answer is option B, which states that the number of branches of the graph is 12.