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Network TheoryTwo-Port Networks

For a reciprocal two-port network described by z-parameters, which relation must hold?

  • Az11=z22 always
  • Bz12=z21
  • Cz11=0
  • Dz12=-z21
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Correct Answer: B. z12=z21
Explanation: A reciprocal two-port has equal transfer impedances: z12=z21.
Reference: Standard network theory: two-port networks
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