- #1
wilsonb
- 28
- 0
why we take current source as a open and voltage source as a short in superposition theorem. is this is because of its internal resistance or any other reason exist?
The superposition theorem states that the total voltage or current in a linear circuit is equal to the algebraic sum of the individual voltages or currents caused by each source acting alone.
To apply superposition theorem, you need to consider each source separately and deactivate all other sources by replacing them with their internal resistances. Then, calculate the voltage or current caused by each individual source and add them together to get the total voltage or current in the circuit.
No, superposition theorem only applies to linear circuits where the output is directly proportional to the input. Non-linear elements, such as diodes and transistors, do not follow this relationship and thus cannot be analyzed using superposition theorem.
The main limitation of superposition theorem is that it can only be applied to linear circuits. It also assumes that the circuit is in a steady state and does not take into account the effects of time-varying signals.
Superposition theorem is useful in circuit analysis because it simplifies complex circuits by breaking them down into smaller, more manageable parts. It also allows for the calculation of individual voltages or currents, making it easier to identify the effects of each source on the circuit. Additionally, the theorem can be used to find the Thevenin or Norton equivalent circuits, which can be helpful in designing and troubleshooting circuits.