Verification of KCL & Current Divider Rule.

1. To verify divider rule with the help of parallel circuits.
2. To verify Kirchhoff’s current law(KCL) 
3. To derive a Parallel circuit and derive equivalent resistance of the circuit both experimentally and analytically

In electronics, a voltage divider also known as the potential divider is a passive linear circuit that provides an output voltage that is a fraction of its input voltage.

Current divider rule,

                           I2 = Rp/Rs X I

                     I=I1 + I2 + I3 

                          Rp = 1/R1+1/R2+1/R3

Apparatus:

1. One DC Voltmeter (0 - 300V)
2. One DC Ammeter (0 - 5A)
3. Three Resistances
4. One Multimeter
5. DC power supply

Working Procedure: 

1. First, we Connect three resistances in parallel across the power supply.
2. Apply voltage dc from dc power supply.
3. Set the resistances R1, R2 & R3, and measure VS, I, I1, I2, I3, R1, R2 &R3.
4. Verify KCL ( i.e. I=I1+I2+I3 ) for each set of data. Compare this with the experimentally obtained value RP=VS/I. Verify the current divider rule for each set of data.
5. Repeat steps 3 to 4 by changing R1, R2, R3 and take three sets of readings.

Fig: Circuits

Data Table:

Here,

                  R1 = .98

                  R2 = 2.16

                  R3 = 3.27

                      Rp = 1/R1+1/R2+1/R3

                           = 1/.98+ 1/2.16 + 1/3.27
                           =1.79

                        1/Rp =  1/1.79

                         Rp  = .55