DC Circuit Theory
The laws that determine the currents and voltage drops in DC networks are: (a) Ohm’s law, (b) the laws for resistors in series and in parallel, and (c) Kirchhoff’s laws (see Section 5.2). In addition, there are a number of circuit theorems that have been developed for solving problems in electrical networks. These include:
Kirchhoff’s laws state:
(a) Current Law. At any junction in an electric circuit the total current flowing towards that junction is equal to the total current ...