This page has every Communication Electronics N4 August paper we have, from 2018 to 2021: 3 question papers and 3 memos in 6 PDFs. The newest year is first. Each paper shows the first page of questions, its marks and time, and what the questions cover.
Communication Electronics N4 August papers by year
Topics that come up most in Communication Electronics N4 August
Counted from the questions in the papers on this page: how many papers each topic appears in, and its average marks.
Topic Papers Average marks
Communication Systems 3 14 Modulation 3 14 Demodulation 3 13 Radio Wave Propagation 2 14 Frequency Response (Filters, Attenuators and Rc Time Constants) 1 22 Alternating Current Theory (Vectors) 1 20 Direct-Current Theory (Network Theorems) 1 15 Alternating-Current Theory (Vectors) 1 15 Network Theorems 1 14 Direct Current Theory (Network Theorems) 1 12
Communication Electronics N4 August 2021 question papers and memos
August 2021: Electronics
Communication Electronics N4 August 2021: Electronics question paper
100 marks · 3 hours · 7 pages · 8 questions
What is in this paper (8 questions)
Q1
Indicate whether the following statements are TRUE or FALSE by writing only 'True' or 10 marks
Q2
Network Theorems 2.1 Define the following: 14 marks
Q3
Alternating Current Theory 3.1 Derive a formula for series resonance in an LC circuit. (2) 11 marks
Q4
Attenuators and Filters 4.1 Differentiate between the following attenuators: 11 marks
Q5
Modulation Explain exactly what happens at the receiving ends of the TWO types of AM 10 marks
Q6
Demodulation 6.1 With a neat, labelled circuit diagram, explain the operation of an amplifier 15 marks
Q7
Communication Systems 7.1 Identify the block diagram in FIGURE 3 below. (1) 11 marks
Q8
Radio Wave Propagation 8.1 Identify the diagram in FIGURE 4. (1) 18 marks
Instructions to candidates Answer all the questions. Read all the questions carefully. Number the answers according to the numbering system used in this question paper. Start each question on a new page. Only use a black or blue pen. Write neatly and legibly. (8080224) -3-
Communication Electronics N4 August 2019 question papers and memos
August 2019: Electronics
Communication Electronics N4 August 2019: Electronics question paper
100 marks · 3 hours · 5 pages · 7 questions
What is in this paper (7 questions)
Q1
Direct-Current Theory (Network Theorems) 1.1 Define Thévenin's theorem. (2) 15 marks
Q2
Alternating-Current Theory (Vectors) 2.1 Study FIGURE 2 below and answer the questions. 15 marks
Q3
Frequency Response (Filters, Attenuators and Rc Time 3.1 Name THREE elements of a filter. (3) 10 marks
Q4
Modulation 4.1 Define each of the following pulse modulations: 15 marks
Q5
Demodulation 5.1 Explain the function of discriminators in FM receivers. (3) 15 marks
Q6
Communication Systems Explain the function of each stage in the block diagram shown in FIGURE 3. 20 marks
Q7
Radio-Wave Propagation 7.1 Define, with a labelled diagram, refraction in the ionosphere. (5) 10 marks
Instructions to candidates Answer ALL the questions. Read ALL the questions carefully. Number the answers according to the numbering system used in this question paper. Write neatly and legibly. (8080224) -3-
Communication Electronics N4 August 2018 question papers and memos
August 2018: Electronics
Communication Electronics N4 August 2018: Electronics question paper
100 marks · 3 hours · 5 pages · 7 questions
What is in this paper (7 questions)
Q1
Direct Current Theory (Network Theorems) 1.1 Differentiate between the TWO Kirchoff's laws: 12 marks
Q2
Alternating Current Theory (Vectors) 2.1 An AC supply of 50 V is applied across a coil having an inductive reactance of 20 marks
Q3
Frequency Response (Filters, Attenuators and Rc Time Constants) 3.1 Explain in detail the construction of a composite filter. (5) 22 marks
Q4
Modulation 4.1 Define phase modulation. (3) 16 marks
Q5
Demodulation 5.1 Explain the process of demodulation. (3) 10 marks
Q6
Communication Systems Identify the block diagram below and explain the function of each stage. 10 marks
Q7
Radio Wave Propagation Define the concepts as it relate to antennas: 10 marks
Instructions to candidates Answer ALL the questions. Read ALL the questions carefully. Number the answers correctly according to the numbering system used in this question paper. Write neatly and legibly. (8080224) -3- T380(E)(J24)T
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Questions about these papers
Which years of Communication Electronics N4 August papers are on this page? Papers from 2021, 2019, 2018. The newest year is at the top.
How many marks is the Communication Electronics N4 August electronics? Electronics is usually out of 100 marks and you get 3 hours to write it.
Are the memos included? Yes. 3 of the 3 papers on this page have their marking memo next to the question paper.
Which topics come up most in Electronics? Communication systems, modulation and demodulation, based on 3 papers on this page.
