Topological Features of a Network

Several terms are frequently used in network analysis node, branch, tree, link, loop, and mesh. 

A node is a terminal or junction at which two or more circuit elements are 

A branch is a portion of a network which contains either a single element or a certain connection of elements between two nodes. 

A loop comprises a set of branches that form a closed path in a network. This set of branches passes through no node or element more than once. 

A planar network or circuit is one that can be drawn on a plane surface without any of the branches crossing each other. Conversely, a non-planar network or circuit cannot be drawn on a plane surface without the crossing of branches. 

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