Question

In superposition theorem, when we consider the effect of one current source, all the
other voltage sources are
a) Shorted
b) Opened
c) Removed
d) Undisturbed​

Answer 1

Answer:

We consider current source as opened and voltage as shorted.

Answer 2

Answer:

In superposition theorem, when we consider the effect of one current source, all the other voltage sources are shorted. (Option a)

Explanation:

What is the superposition theorem?

• According to the superposition theorem, "current through (or voltage across) an element in any bilateral network with two or more independent sources is the algebraic sum of the currents through (voltages across) that element caused by each independent source acting alone, with all other sources being replaced by their internal resistances."
• In other words, the voltage across an element in a linear circuit is the algebraic sum of the voltages across that element due to each independent source acting alone.
• In order to apply superposition theorem,

1. Voltage sources are shorted,
2. Current sources are open circuited.

• It is very helpful to determine the voltage when there are multiple voltage or current sources.
• Its disadvantage is that it is not applicable to non-linear circuits.
• It is also not applicable for power calculations since power dissipation is non-linear.
• This theorem requires two or more sources in the circuit to apply.