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Network TheoryMatrix Network Analysis

In a nodal admittance matrix, a diagonal element Yii is generally formed from?

  • AThe negative sum of all conductances incident at node i
  • BThe sum of conductances connected to node i
  • COnly the largest branch resistance
  • DThe product of all branch impedances
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Correct Answer: B. The sum of conductances connected to node i
Explanation: The diagonal entry is the sum of admittances incident on the corresponding node under the standard nodal formulation.
Reference: Standard network theory: nodal matrix diagonal
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