1. EXPERIMENT 2

2. Measure the actual value of each resistor and record in Table 2.1

3. PART A
Construct the circuit shown in Fig. 2.1

4. CONNECTIONS
330
300
1.8 k
2.7 k
3 k

5. Commence at point A and measure the potential difference between each successive pair of lettered terminals for Mesh 1. i. e. A-B, B-C, C-D and D-A. (Note: DMM’s probes have to be placed consistently.)
Record down the measured values in Table 2.2. A B

6. Reference
points
Measured Values
Theoretical Values
Potential
Difference (V)
Sign (+ or -)
A-B
 0.739 V -
B-C
7.964 V
C-D
 10 V  +
D-A
 1.297 V - 

7. A C
Measure the potential difference for the points AC, CE and EA. Verify Kirchhoff’s voltage law using the displayed values. (Note that VCA is actually VC – VA). What can be deduced from this condition? Record the measured values in Table 2.3.

8. Potential Difference (V)
Reference
points
Measured Values
Theoretical Values
Potential Difference (V)
Sign (+ or -)
A-C
8.703 V  -
C-E
 9.245 V +
E-A
 0.542 V
Measure the potential difference for the points AC, CE and EA. Verify Kirchhoff’s voltage law using the displayed values. (Note that VCA is actually VC – VA). What can be deduced from this condition?

9. x y z
PART B
Measure the branch currents entering node A by placing ammeter as shown in Fig. 2.1.
Record the magnitude and the direction of the current as indicated by each ammeter in Table 2.4.

10. 300
1.8 k
330
2.7 k
3 k
300

11. 300
330
1.8 k
2.7 k
3 k
300

13. Resistance
Current
Current direction R3
mA 
Going out R4
- 0.432 mA
Going out  R6
2.238 mA 
Going into x y z