1.6 POWER AND ENERGY RELATIONS FOR TWO-TERMINAL ELEMENTS
An ideal two-terminal circuit element has a unique voltage variable assigned at its terminals and a unique current variable assigned to its terminals. The electrical behaviour of such an element can be described in terms of these two variables at all instants. Electromagnetic disturbances are assumed to travel instantaneously to all parts of such an element. This results in an electrical description that is independent of space variables for the element. Such an electrical description for an element is termed as lumped parameter description.
Further, ideal two-terminal elements have only one kind of electrical phenomena taking place inside them. The capacitive and inductive effects in a ...
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