Question

How do we calculate the inverse hybrid parameter g11 of a two – port network?

(a) g11 = I1 / V1

(b) g11 = I2 / V1

(c) g11 = I1 / V2

(d) g11 = I2 / V2

The question was asked in class test.

My question comes from Measurement of H-Parameters topic in chapter Small-Signal Low-Frequency AC models of Transistors of Electronic Devices & Circuits

Answer 1

Correct answer is (a) g11 = I1 / V1

For explanation I would say: The inverse hybrid parameter g11 for a two – port network is calculated by open circuiting the output terminal. In this case, the current I2 is equal to zero. The parameter g11 is calculated by taking the ratio of input terminal current over input terminal voltage.