Principle and procedure to apply superposition theorem in electrical circuits

 

The superposition theorem states that in a linear circuit (one in which the relationships between the circuit elements are linear), the response of the circuit to multiple input sources is the sum of the responses of the circuit to each individual input source. In other words, if you have a circuit with multiple input sources, you can find the total response of the circuit by adding up the responses to each input source separately.

The superposition theorem is a powerful tool for analyzing and understanding the behavior of linear circuits, as it allows you to break down a complex circuit into smaller, simpler components and analyze them individually. This can make it easier to understand the circuit as a whole and to predict its behavior under different conditions.

To use the superposition theorem, you will typically need to follow these steps:

1. Identify the input sources in the circuit. These may include voltage sources, current sources, or other types of inputs.
2. Find the response of the circuit to each individual input source. This may involve solving circuit equations or using other analysis techniques.
3. Add up the responses to each input source to find the total response of the circuit.
4. Analyze the total response to understand the behavior of the circuit. This may involve calculating quantities such as the voltage or current at various points in the circuit, or the power dissipated by resistors.

By using the superposition theorem, you can analyze complex linear circuits more efficiently and accurately, and understand how different input sources affect the circuit's behavior.