METV202 (2024)
PRACTICAL 1: (CH1-8)
DC CIRCUITS
STUDENT NAME
STUDENT NUMBER
MODULE DESCRIPTION
: ELECTROTECHNOLOGY 2A
MODULE CODE
: METV202
FACULTY
: ENGINEERING, THE BUILT ENVIRONMENT AND TECHNOLOGY
SUBMISSION DEADLINE
: CALCULATIONS & SIMULATIONS - 3 SEPTEMBER 2024
LECTURER
: STEFAN VAN AARDT
152 Marks
NO SUBMISSIONS WILL BE ACCEPTED AFTER THE DEADLINE
Brief: Section 1 will be required to be done by hand calculations and with the aid of simulations
(PSim). Show all working out. Any skipped calculations will result in 0 for that question. Section
2 (build) will commence towards the end of the semester at which time you will be required to
build the following circuits in the lab and measure and record the results.
1. Task 1: [21]
Construct the resistor configuration on the breadboard as per Figure 1 without connecting any
power to the circuit:
1. Manually calculate the equivalent circuit resistance between points A and B [2]
2. Manually calculate the equivalent circuit resistance between points A and C [3]
3. Manually calculate the equivalent circuit resistance between points B and C [1]
4. Manually calculate the equivalent circuit resistance between points B and D [3]
5. Simulate and measure the equivalent circuit resistance between points A and B [2]
6. Simulate and measure the equivalent circuit resistance between points A and C [2]
7. Simulate and measure the equivalent circuit resistance between points B and C [2]
8. Simulate and measure the equivalent circuit resistance between points B and D [2]
9. Build the circuit and measure the equivalent circuit resistance between points A and B [1]
10. Build the circuit and measure the equivalent circuit resistance between points A and C [1]
11. Build the circuit and measure the equivalent circuit resistance between points B and C [1]
12. Build the circuit and measure the equivalent circuit resistance between points B and D [1]
Figure 1
2. Task 2.1: [46]
Connect the 24VDC power supply between points A and D as per the below in Figure 2.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Calculate the current through ammeter Ia [4]
Calculate the current through ammeter Ic [3]
Calculate the current through ammeter Id [3]
Calculate the potential difference Vab [1]
Calculate the potential difference Vbc [1]
Calculate the potential difference Vbd [1]
Calculate the power dissipated in Ra [1]
Calculate the power dissipated in Rd [1]
Calculate the power dissipated in Rg [1]
10. Simulate and measure the current through ammeter Ia [1]
11. Simulate and measure the current through ammeter Ic [1]
12. Simulate and measure the current through ammeter Id [1]
13. Simulate and measure the potential difference Vab [1]
14. Simulate and measure the potential difference Vbc [1]
15. Simulate and measure the potential difference Vbd [1]
16. Simulate and measure the power dissipated in Ra [2]
17. Simulate and measure the power dissipated in Rd [2]
18. Simulate and measure the power dissipated in Rg [2]
19. Build the circuit and measure the current through ammeter Ia [1]
20. Build the circuit and measure the current through ammeter Ic [1]
21. Build the circuit and measure the current through ammeter Id [1]
22. Build the circuit and measure the potential difference Vab [2]
23. Build the circuit and measure the potential difference Vbc [2]
24. Build the circuit and measure the potential difference Vbd [2]
25. Build the circuit and measure the power dissipated in Ra [2]
26. Build the circuit and measure the power dissipated in Rd [2]
27. Build the circuit and measure the power dissipated in Rg [2]
28. Explain the variation between the measured and calculated values [2]
Figure 2
3. Task 2.2 [49]
Construct the circuit as in Figure 3 below using any analysis technique in chapter 8:
1. Calculate the current through ammeter Ia [2]
2. Calculate the current through ammeter Ib [2]
3. Calculate the current through ammeter Ic [2]
4. Calculate the voltage Vac [3]
5. Calculate the voltage Vcd [2]
6. Calculate the voltage Vbc [2]
7. Calculate the voltage Vad [2]
8. Calculate the power dissipated by Ra [3]
9. Calculate the power dissipated by Re [2]
10. Calculate the power dissipated by Rg [3]
11. Simulate and measure the current through ammeter Ia [1]
12. Simulate and measure the current through ammeter Ib [1]
13. Simulate and measure the current through ammeter Ic [1]
14. Simulate and measure the voltage Vac [1]
15. Simulate and measure the voltage Vcd [1]
16. Simulate and measure the voltage Vbc [1]
17. Simulate and measure the voltage Vad [1]
18. Simulate and measure the power dissipated by Ra [2]
19. Simulate and measure the power dissipated by Re [2]
20. Simulate and measure the power dissipated by Rg [2]
21. Build the circuit and measure the current through ammeter Ia [1]
22. Build the circuit and measure the current through ammeter Ib [1]
23. Build the circuit and measure the current through ammeter Ic [1]
24. Build the circuit and measure the voltage Vac [1]
25. Build the circuit and measure the voltage Vcd [1]
26. Build the circuit and measure the voltage Vbc [1]
27. Build the circuit and measure the voltage Vad [1]
28. Build the circuit and measure the power dissipated by Ra [2]
29. Build the circuit and measure the power dissipated by Re [2]
30. Build the circuit and measure the power dissipated by Rg [2]
Figure 3
4. Task 2.3 [38]
Given the circuit in Figure 4, using the nodal approach:
1. Determine the nodal equations and voltages [8]
2.
3.
4.
5.
6.
7.
8.
9.
Calculate the resulting current in the Ia [1]
Calculate the resulting current in the Ib [1]
Calculate the resulting current in the Ic [1]
Calculate the resulting current in the Id [1]
Calculate the voltage Vab [1]
Calculate the power dissipated by Ra [1]
Calculate the power dissipated by Rc [1]
Calculate the power dissipated by Re [1]
10. Simulate and measure the resulting current in the Ia [1]
11. Simulate and measure the resulting current in the Ib [1]
12. Simulate and measure the resulting current in the Ic [1]
13. Simulate and measure the resulting current in the Id [1]
14. Simulate and measure the voltage Vab [1]
15. Simulate and measure the power dissipated by Ra [2]
16. Simulate and measure the power dissipated by Rc [2]
17. Simulate and measure the power dissipated by Re [2]
18. Build the circuit and measure the resulting current in the Ia [1]
19. Build the circuit and measure the resulting current in the Ib [1]
20. Build the circuit and measure the resulting current in the Ic [1]
21. Build the circuit and measure the resulting current in the Id [1]
22. Build the circuit and measure the voltage Vab [1]
23. Build the circuit and measure the power dissipated by Ra [2]
24. Build the circuit and measure the power dissipated by Rc [2]
25. Build the circuit and measure the power dissipated by Re [2]
Figure 4