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<=CDACC ICT Technician Level 6: Apply Basic Electronics past paper November 2022
Explain the formation of a depletion Layer in a pn junction
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Questions List:
1. Define an electronic circuit
2. Describe any FOUR components found in an electronic circuit
3. Briefly describe any FOUR types of electrical circuits
4. Distinguish between a loop network and a mesh network of an electric circuit
5. Define electrical resistance
6. Outline any TWO application areas of holographic memory in a computer
7. List any FOUR types of capacitors
8. Differentiate between an atom and atomic structure
9. Describe the structure of a matter
10. Name any TWO types of semiconductor materials used.
11. Distinguish between P-Type materials and N-Type materials giving examples in each one of them
12. Using an example illustrate why a PN Junction is used
13. Explain how valence electrons determine the electrical properties of a material
14. Describe the valence band, conduction band and forbidden energy gap with the help of energy level diagram
15. List three important properties of semiconductors
16. Define a semi-conductor in terms of resistivity
17. Explain the formation of a depletion Layer in a pn junction
18. Discuss the behavior of a pn junction under forward biasing
19. Define the following terms: i. Breakdown voltage ii. Knee voltage
20. Explain the operation of transistor as an amplifier
21. Name the three possible transistor connections
22. In a transistor, β = 45, the voltage across 5kΩ resistance which is connected in the collector circuit is 5 volts. Find the base current for the common emitter connection
23. With aid of a sketch, outline the configurations of PN junction diode showing both the input signal and output
24. Discuss any six challenges of emerging trends in electronic manufacturing
1. Define an electronic circuit
2. Describe any FOUR components found in an electronic circuit
3. Briefly describe any FOUR types of electrical circuits
4. Distinguish between a loop network and a mesh network of an electric circuit
5. Define electrical resistance
6. Outline any TWO application areas of holographic memory in a computer
7. List any FOUR types of capacitors
8. Differentiate between an atom and atomic structure
9. Describe the structure of a matter
10. Name any TWO types of semiconductor materials used.
11. Distinguish between P-Type materials and N-Type materials giving examples in each one of them
12. Using an example illustrate why a PN Junction is used
13. Explain how valence electrons determine the electrical properties of a material
14. Describe the valence band, conduction band and forbidden energy gap with the help of energy level diagram
15. List three important properties of semiconductors
16. Define a semi-conductor in terms of resistivity
17. Explain the formation of a depletion Layer in a pn junction
18. Discuss the behavior of a pn junction under forward biasing
19. Define the following terms: i. Breakdown voltage ii. Knee voltage
20. Explain the operation of transistor as an amplifier
21. Name the three possible transistor connections
22. In a transistor, β = 45, the voltage across 5kΩ resistance which is connected in the collector circuit is 5 volts. Find the base current for the common emitter connection
23. With aid of a sketch, outline the configurations of PN junction diode showing both the input signal and output
24. Discuss any six challenges of emerging trends in electronic manufacturing
