Superposition

Consider this is a circuit:

Find V?

To solve for the given circuit:

• using the superposition method, we remove the (independent) sources, except one, and analyze the circuit for that one.
• then we repeat the procedure for another source, and so on.
• for removing source, we replace the voltage source with a short circuit. Then, for current source we replace it with an open circuit.

• choose one of the two sources and remove it, and replace it with short circuit.

• You can use Nodal Analysis, Ohm's Law, Voltage Division or Mesh for getting the value of B.
• For easier to solve, You can use Voltage Division.
• Then, use the formula of Voltage Division.
• Next is to kill the 12V source and replace with short circuit and leave 2V source.

• repeat procedure
• then, add the voltages you get on the first equation  and second equation.
• Finish