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What does the term "cut-set" refer to in network analysis ?

  • A.A set of parallel resistors
  • B.A set of series resistors
  • C.A combination of resistors and capacitors
  • D.A set of branches that, if cut, will divide the network into two parts

Answer: D

A cut-set is a set of branches that, if cut, will divide the network into two parts.

In network topology, a cut-set is a minimal set of branches whose removal separates the graph into exactly two connected parts; removing any fewer branches leaves it connected. Each tree branch defines a fundamental cut-set, and Kirchhoff's current law applied to each cut-set gives the independent node-type equations of the network.

A cut-set is defined by the graph, not by the type of element in the branches, so it is not a set of parallel or series resistors or a combination of resistors and capacitors.

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