Verification of Thevenin's Theorem

Verification of Thevenin's Theorem

Procedure:

Keep all the resistances (R₁, R₂, R₃, R_L) close to their respective maximum values. Choose any arbitrary values of V₁ and V₂.

Experiment Part Select:

Case 1:
Select switch of S₁ to Power and S₂ to load. Simulate the program. Observe the result from Table 1.

Case-2:
a)Thevenin Voltage analysis:
Apply switch S₁ to power and S₂ to intermediate. Simulate the program.Read Thevenin voltage (V_th) from Case 2 tab.

b)Thevenin Resistance analysis:
Apply switch S₁ to short and S₂ to power. Simulate the program. Read Thevenin resistance (R_th) from Case 2 tab.

Case-3: Using V_th and R_th determine Load Current:
Specify the load resistance in case of the result table as the same load resistance entered in the main circuit. Simulate the program. Read Load current (I_L) from Case 3 tab. Compare the load currents (I_L) obtained from above two cases.

MC-Moving Coil.
DPDT- Double pole Double throw.
N.B.:- All the resistances are in ohms.

Case 1
Circuit analysis to determine Load Current (I_L)
To get the load current select switches
S₁ to Power and S₂ to Load.
And then click on Simulate.
Load current (I_L):
Case 2(a)
Circuit analysis to determine Thevenin Voltage (V_th)
To get the Thevenin voltage select switches
S₁ to Power and S₂ to Intermediate.
And then click on Simulate.
Thevenin Voltage (V_th):
Case 2(b)
Circuit analysis to determine Thevenin Resistance (R_th)
To get the Thevenin Resistance select switches S₁ to
Short and S₂ to Power. And then click on Simulate.
Voltage V₂ : and Current :
Thevenin Resistance (R_th):
Case 3
Click on simulate to get
the Load Current(I_L) from
the Thevenin equivalent
parameter of the above circuit.

Load Current(I_L) :

Observation Table:

Serial no. of Observation	Load Current(I_L) from case 1	Load Voltage(V_L)	Load Resistance (R_L)=V_L/I_L	Thevenin Voltage(V_th) from case 2(a)	2nd Voltage source(v) for case 2(b)	Ammeter Reading(I) from case 2(b)	Thevenin Resistance R_th=V/I	Load current (I_L)=V_th/(R_th+R_L)
1st
2nd
3rd
4th
5th