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Network theory miscellaneous

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Network Theory

Network Elements and the Concept of Circuit
Network theory miscellaneous
  1. What is the value of Z21 for the network shown above?


    1. – 2Ω
    2. – 1/2Ω
    3. 1Ω
    4. 2Ω
Correct Option: B

The given network

Since the given network is symmetric lattice network,
therefore

Z11 = Z22 =
R1 + R2
 =
2 + 1
 =
3
 Ω
222

and
Z11 = Z21 =
R2 - R1
 =
1 - 2
 =
-1
 Ω
222

Hence alternative (B) is the correct choice.


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