Statement: Any linear bilateral electrical network can be reduced to a single voltage source and a series resistors.
Thevenin theorem is a useful network theorem which helps us to reduce a complex electrical network to a simple circuit. Thevenin theorem reduces a circuit to simple series circuit thus making the analysis process very easy for circuits. Let’s understand the theorem:
Steps involved in solving circuits:
- Remove the load (if any) from the circuit.
- Label the resulting terminals.
- Replace all the voltage/current sources.*
- Calculate the equivalent resistance of the circuit. This resistance is known as Thevenin resistance.
- Determine the output voltage across labeled terminals.
- Connect resistance (from step 4) in series to a voltage source (whose value equals the value calculated from step 5).
In this video, you’ll learn the Thevenin theorem in a step by step manner with an example.