What is Superposition Theorem?

What is Superposition Theorem?

Superposition Theorem Definition

The superposition theorem is defined as a method to find the total current in a branch by summing the currents from each source acting alone.

Voltage Sources

Replace voltage sources with short circuits or their internal resistance when removing them from the circuit.

Current Sources

Replace current sources with open circuits or their internal resistance when removing them from the circuit.

Linear Circuit Requirement

The theorem applies only to linear circuits where Ohm’s law is valid.

Application Steps

The steps include replacing all but one source by their internal resistances, calculating currents, repeating for each source, and summing the currents for the total effect.