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Network TheoryNetwork Theorems

If a branch carrying current I has its impedance increased by Delta Z, the compensating source magnitude used in the compensation theorem is proportional to?

  • AI/Delta Z
  • BI Delta Z
  • CI squared divided by Delta Z
  • DDelta Z/I squared
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Correct Answer: B. I Delta Z
Explanation: The compensating voltage magnitude is I Delta Z, with polarity chosen according to the theorem's replacement convention.
Reference: Standard network theory: compensation theorem relation
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