Superposition Theorem Explained (with Examples)

In this video, Superposition Theorem is explained with examples.

So, in this video, first, Superposition Theorem is explained using one example of an electrical circuit and then three examples based on this Superposition Theorem has been solved.

Superposition Theorem Statement:

Any linear bilateral network containing more than one independent sources, the response in any of the branches ( Voltage or Current) is equal to the algebraic sum of the responses caused by each individual sources acting alone, where rest of the sources are replaced by their internal impedance.
So, ideal voltage source will be replaced by a short circuit and ideal current source will be replaced by an open circuit.

This Superposition Theorem is quite useful when circuit contains more than one independent AC sources with different frequencies.

To apply this Superposition Theorem, the network or circuit has to be linear and bilateral.
To, know about linear and bilateral network check my other video on Classification of Electrical Networks
   • Classification of Electrical Network  

This Superposition Theorem cannot be applied for the power calculations, which is the limitation of this Superposition Theorem.

If the circuit contains any dependent source, then during the Superposition Theorem analysis, all the dependent sources are kept on. Or in another way, we can say that dependent sources are not turned off during the analysis.

The timestamps for the different topics in the video is given below.

2:23 Superposition Theorem Statement

4:21 Example 1 (With Current Source)

8:34 Example 2 (Power Calculation)

13:31 Example 3 (With Dependent source)

This video will be helpful to all student of science and engineering in understanding the Superposition Theorem in the electrical circuits.

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