• In a linear network with several independent sources, the response in a particular branch when all the sources are acting simultaneously is equal to the linear sum of individual responses calculated by taking one independent source at a time.
  • All the ideal voltage sources are eliminated from the network by shorting the sources, all the ideal current sources are eliminated from the network by opening the sources and do not the dependent sources present in the network.


  • This theorem is applicable only to linear networks i.e. the networks with R, L,C, transformer and linear controlled sources as elements.
  • The presence of dependent sources makes the network an active and hence SPT is used for both active as well as passive¬†networks.

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