Principle and procedure to apply Maximum power transfer theorem in electrical circuits

The maximum power transfer theorem states that, in a linear electrical circuit, the power transferred from the source to the load is maximized when the load resistance is equal to the internal resistance of the source. In other words, the power delivered to the load will be at its maximum when the load resistance matches the internal resistance of the source.

To use the maximum power transfer theorem to analyze a circuit, you can follow these steps:

1. Identify the source and the load in the circuit.
2. Calculate the internal resistance (Ri) of the source. This is the resistance of the source as seen from the terminals of the circuit, and it may include the resistance of the source itself as well as any other resistances in the circuit.
3. Calculate the load resistance (RL). This is the resistance of the load as seen from the terminals of the circuit.
4. Compare the internal resistance of the source to the load resistance. If they are equal, then the power transferred from the source to the load will be maximized. If they are not equal, then you can use the maximum power transfer theorem to find the value of the load resistance that will maximize the power transfer.

The maximum power transfer theorem can be a useful tool for designing and optimizing electrical circuits, as it allows you to determine the load resistance that will maximize the power delivered to the load. It can also be used to analyze the performance of existing circuits and to troubleshoot problems with power delivery.