AIM: To verify Ohm’s law in a series d.c circuit.

                                          VS = 5 V

Quantity	Measured value
RT
Total current, IT
Supply voltage
VR3
VR4

           

 

 

Table 3          
                                              
                                               VS = 10 V

Quantity	Measured value
RT
Total current, IT
Supply voltage
VR3
VR4

                                                                                                           
 

 

1.   Adjust the power supply to 5 V.
2.   Close switch S.
3.   Measure the total resistance RT and record in Table 2.
4.   Measure the supply voltage across PQ and the voltage drop across each of

  the resistors R3 and R4 and record the results in Table 2.

•   Read and record in Table 2 the ammeter reading (IT).
•   Open switch S.
•   Adjust the power supply to 10 V.
•   Repeat steps (e) to (i) and record all the readings in Table 3.
•   Compare (VR3 + VR4) (V) with Vs(V) in Table 2.
• Compare (R3 + R4) Ω with RT Ω in Table 3.