Question

What is the size of a h parameter matrix for a two – port network?

(a) 2 × 2

(b) 2 × 4

(c) 4 × 4

(d) 4 × 2

The question was posed to me in examination.

Enquiry is from Two-Port Devices and Hybrid Model in chapter Small-Signal Low-Frequency AC models of Transistors of Electronic Devices & Circuits

Answer 1

Correct choice is (a) 2 × 2

To explain I would say: The hybrid parameters for a two – port network consist of a 2 × 2 matrix consisting of four elements: h11, h12, h21 and h22. They are calculated by short circuiting the input / output port and calculating the respective ratios.