Finding current by using superposition method. There are two independent sources, so we need to turn them off one by one and calculate their contributions.
Thévenin's Theorem is deployed to solve a simple circuit which contains two independent sources. The solution is explained step-by-step.
A circuit with two independent and two dependent sources is solved by the superposition method. Independent sources are turned off one at a time and the contribution of the on source is calculated. Dependent sources should not be turned off.
A circuit with two voltage sources and two current sources is solved by the superposition method. The contribution of each source is calculated individually and the response is found by adding the contributions.