Verification of super position theorem in dc circuits

AIM:

To verify the superposition theorem for the given circuit.

APPARATUS REQUIRED:

1. RPS (regulated power supply) (0-30V)  – Quantity 2 
2. Ammeter (0-10mA) 
3. 220Ω, 330Ω 1k Resistors  
4. Bread Board — — 5. Wires — Required

THEORY:

Superposition theorem states that in a linear bilateral network containing more than one source, the current flowing through the branch is the algebraic sum of the current flowing through that branch when sources are considered one at a time and replacing other sources by their respective internal resistances.

PRECAUTIONS:

•  Voltage control knob should be kept at minimum position
• Current control knob of RPS should be kept at maximum position

PROCEDURE:

1. Give the connections as per the diagram. 
2. Set a particular voltage value using RPS1 and RPS2 & note down the ammeter reading 
3. Set the same voltage in circuit I using RPS1 alone and short circuit the terminals and note the ammeter reading. 
4. Set the same voltage in RPS2 alone as in circuit I and note down the ammeter reading. 
5. Verify superposition theorem.

CIRCUIT DIAGRAM:

Circuit 1:

Circuit 2:

Circuit 3:

TABULAR COLUMN:

Theoretical Values:

I = I + I

Practical Values:

I = I + I

RESULT:

Superposition theorem have been verified theoretically and practically.