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A connected network graph has 7 nodes and 11 branches. How many independent cut-set equations can be formed from a tree?

  • A4
  • B6
  • C7
  • D11
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Correct Answer: B. 6
Explanation: A tree of a connected graph has n-1 twigs, and each twig defines one fundamental cut-set. Thus 7-1=6.
Reference: Standard network theory: fundamental cut-set count
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