chapter  1
36 Pages

Basics

The definitions given in this chapter apply strictly only to linear and timeinvariant electrical devices and circuits.1 Most of the discussion is centered on two-terminal elements, also called two-terminal networks, or one-ports, see Fig. 1.1; a voltage v(t) across the two terminals, and a current i(t) entering one terminal and exiting the other can be defined. However, impedance metrology deals often with elements having more than two terminals, see Sec. 1.6.