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In a hybrid model of a two – port network, parameter h11 is also known as?

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In a hybrid model of a two – port network, parameter h11 is also known as?

(a) Input conductance

(b) Input resistance

(c) Output conductance

(d) Output resistance

This question was addressed to me in final exam.

My query is from Determination of the H-Parameters topic in section Small-Signal Low-Frequency AC models of Transistors of Electronic Devices & Circuits

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Correct option is (b) Input resistance

Easy explanation: The parameter h11 can be calculated by short circuiting the output port. By doing so, we can calculate h11 = V1 / I1. Since this gives h11 the units of volts / ampere or in other words ohms, it is also known as input resistance.

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