SUPERPOSITION THEOREM - ECS LAB (II year II sem)

SUPERPOSITION THEOREM

AIM: - To verify Superposition theorem                                              

APPARATUS REQUIRED:

Sl. No.	Name of the Component	Specifications	Quantity
1	Resistors	1 KW	2 1
		2.2 KW
2	D.R.P.S.	0-30 v	1
3	Ammeters	0-20 mA	1
4	Bread board		1

THEORY:

  Superposition Theorem:

     If any linear, bilateral network contains more than one source, then the current flowing through any branch is the sum of all currents, which would flow through that branch if each source were considered separately, and all the other sources being killed or deactivated.

Short-circuiting it can kill a voltage source and open circuiting it can kill a current. 

PROCEDURE:

Superposition Theorem:

1. Connect V1, V₂ as shown in Fig 1-a.

2. For different V₁ and V₂ values note the D.C. ammeter (0 – 20 mA) reading as “I_T”  

3. Replace  ‘V₂’ with a short circuit as shown in Fig 1-b and read the ammeter reading as “I₁” for corresponding values of V₁

4. Replace “V₁” with a short circuit as shown in Fig 1-c and connect “V₂” in the circuit and read ‘I₂’ for corresponding values of V₂.

5. I_T = I₁ + I₂

PREACAUTIONS: 

1. Connect the circuit elements as per the circuit diagram

2. Avoid loose connections of the circuit elements

3. Take the readings carefully and accurately

4. Do not tamper the circuit elements.

OBSERVATION TABLE:

Superposition Theorem:

Sl. No.	Input Voltage		I1 (mA) Theoretical	I2 (mA) Theoretical	IT(mA) Theoretical	I1 (mA) Practical	I2 (mA) Practical	IT (mA) Practical
	V1 (volts)	V2 (volts)
1 2 3 4 5	5   10   15   20   25	10 15 20 25 30

RESULT: