4.1 THE CIRCUIT ANALYSIS PROBLEM
Let such a memoryless circuit contain b such elements interconnected to form n nodes and l loops. Each two-terminal element has two variables associated with it - a voltage and a current variable. Thus, there are 2b variables to be solved for in the circuit analysis problem. Each element is also associated with a terminal voltage-current relationship that yields an equation called the element equation. Ohm's law gives the element equation of a resistor. The element equation of a linear dependent source is given in the form indicated in the side box.
Thus, we have b element equations available and we need b more equations to solve for 2b variables.
These b equations are obtained by applying KVL and KCL constraints ...
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