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Network TheoryNetwork Functions

A transfer function has a zero at s=-4. Which factor appears in its numerator?

  • As-4
  • Bs+4
  • C1/(s+4)
  • Ds^2+4
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Correct Answer: B. s+4
Explanation: A zero at s=-4 means the numerator becomes zero at -4, so it contains the factor (s+4).
Reference: Standard network theory: zeros
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