1. Example 4.10 Finding the Thevenin equivalent of a circuit with a dependent source.

2. 4.11 More on Deriving a Thevenin Equivalent If the network contains only independent sources: –To calculate R Th for such a network, we first deactivate all independent sources and then calculate the resistance seen looking into the network at the designated terminal pair. A voltage source is deactivated by replacing it with a short circuit. A current source is deactivated by replacing it with an open circuit. If the circuit or network contains dependent sources: –Deactivate all independent sources, and we then apply either a test voltage source or a test current source to the Thevenin terminals a, b. The Thevenin resistance equals the ratio of the voltage across the test source to the current delivered by the test source. –In a network containing only resistors and dependent sources, you must use the alternative method.

3. Example 4.11 Finding the Thevenin Equivalent using a Test Source.

4. 4.12 Maximum Power Transfer

5. Example 4.12