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What is h11 also known as in hybrid-pi conductance in low frequency H-parameters?

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What is h11 also known as in hybrid-pi conductance in low frequency H-parameters?

(a) Input conductance

(b) Input resistance

(c) Output conductance

(d) Output resistance

The question was asked during an online interview.

The origin of the question is Hybrid PI Conductances in Low Frequency H Parameters topic in division High Frequency Transistor of Electronic Devices & Circuits

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Right answer 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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