What is Superposition Theorem?

Encyclopedia
07/19/2024


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.


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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.


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