Equation is satisfied when=. The maximum power is=

One of the main uses of Thevenin's and Norton's theorems is the replacement of a large part of network very simple equivalent

Let us first define a linear element as passive element that has a linear voltage-current relationship

Mesh analysis is applicable only to those networks, which are planar. If it is possible to draw the diagram of a circuit on a plane surface in such a way that no branch passes over or under any other branch, then that circuit is said to be planar circuit. (Non-planar-circuit

We select one node as a reference node and then define a voltage between each remaining node and the reference node

The voltage division The current division

The ideal voltage source and a series resistance comprise a practical voltage source

Any given arm of the Y network is found by taking the product of the two adjacent arms of the network and dividing by the sum of the network arms

The series combination of voltage sources: Several voltage sources in series may be replaced by an equivalent voltage source having a voltage equal to the algebraic sum of the individual sources

A point at which two or more elements have common connection is called node(节点). Suppose that we start at one node in a network and move through a simple element to the node at the other..., if no node was encountered more than once, then the set of nodes and elements that we have passed hrough is defined as path(路径)