Which one of the following parameters does not exist for the two-port network in the circuit given below?(a) h(b) Y(c) Z(d) gThe question was posed to me during an interview.My question is from Inverse Hybrid (g) Parameter topic in division Two-Port Networks of Network Theory

Which one of the following parameters does not exist for the two-port

1.	Which one of the following parameters does not exist for the two-port network in the circuit given below?(a) h(b) Y(c) Z(d) gThe question was posed to me during an interview.My question is from Inverse Hybrid (g) Parameter topic in division Two-Port Networks of Network Theory
Answer» Right ANSWER is (c) Z Explanation: Y-parameter = \(\frac{1}{Z}\)[1; -1; -1; 1] And from the DEFINITION of the Y PARAMETERS, ∆Y = 0. Therefore the Y-parameter exists. Since ∆Y = 0, so by property of reciprocity, ∆h = 0 and ∆g = 0. Hence both hybrid and inverse hybrid parameters exist. But the Z-parameters cannot exist here because if one terminal is opened the circuit will become invalid. ∴ Z- parameters do not exists.

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