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Network TheoryNetwork Theorems

When finding Thevenin resistance in a circuit containing dependent sources, dependent sources should generally be?

  • ATurned off like independent sources
  • BKept active
  • CAlways replaced by open circuits
  • DAlways replaced by short circuits
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Correct Answer: B. Kept active
Explanation: Dependent sources remain active because their values depend on circuit variables. A test source can be applied at the terminals to determine equivalent resistance.
Reference: Standard network theory: network theorems
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