WAEC Syllabus for Basic Electronics/ Electronics
WAEC Syllabus for Basic Electronics/ Electronics. WAEC Syllabus for Basic Electronics/ Electronics is available for all candidates who want to participate in the examination. The West African examination council (WAEC) has officially introduced a syllabus that will guide all the WAEC candidates who wish to write the WAEC examination this year. For a very successful WAEC Basic Electronics/ Electronics examination for this year, you need to check out the available areas of concentration. It has been divided into sections with chapters, followed by the topics to be covered in preparation for the exams. In the WAEC Syllabus for Basic Electronics/ Electronics, you will also see the format of how the WAEC Basic Electronics/ Electronics questions will be presented. Jamb form
There are always 3 sections to answer questions from. Paper 1 is Objective questions, paper 2 is essay questions and paper 3 is practical test. Where paper one (1) carries 50 1 hour for 50 marks, paper two (2) carries 1 hour for 50 marks, while paper three (3) carries 100 marks for 3hours. Dollar to Naira Rate
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Live, Study and Work in Canada. No Payment is Required! Hurry Now click here to Apply >> Immigrate to CanadaThis WAEC syllabus is for both the O’level WAEC and General Certificate Examination (GCE) candidates. Final year students in the senior secondary school level and external candidates are eligible to make use of this syllabus and prepare ahead of the examination. Jamb Result
See the full detailed information concerning the WAEC Basic Electronics/ Electronics Syllabus below.
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PREAMBLE
The syllabus is intended to equip candidates with broad understanding of the technology of manufacturing, maintenance and repair of domestic and industrial equipment. It will also offer candidates sufficient knowledge and skills to form valuable foundation for electronics-related vocation or pursue further educational qualifications. WAEC Syllabus for Basic Electronics/ Electronics
Candidates will be expected to cover all the topics.
OBJECTIVES
The objective of the syllabus is to test candidates’
- knowledge and understanding of the basic concepts and principles of electronics;
- ability to use simple electronic devices to build and test simple electronic systems;
- problem-solving skills through the use of the design process;
- preparedness for further work in electronics;
- knowledge in entrepreneurial skills and work ethics. Npower Recruitment
SCHEME OF EXAMINATION
There will be three papers, Papers 1, 2 and 3, all of which must be taken. Papers 1 and 2 shall be composite paper to be taken at one sitting.
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Live, Study and Work in Canada. No Payment is Required! Hurry Now click here to Apply >> Immigrate to CanadaPAPER 1: will consist of fifty multiple-choice objective questions all of which are to be answered in 1 hour for 50 marks.
PAPER 2: will consist of seven short-structured questions. Candidates will be required to answer any five in 1 hour for 50 marks.
PAPER 3: will be a practical paper of two experiments both of which are to be carried out by candidates in 3 hours for 100 marks.Waec Result
Alternative to Practical Test
Alternatively, in the event that materials for the actual practical test cannot be acquired, the Council may consider testing theoretically, candidates’ level of acquisition of the practical skills prescribed in the syllabus. For this alternative test, there will be two compulsory questions to be answered within 2 hours for 100 marks.
DETAILED SYLLABUS
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CONTENTS
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1. ELECTRON EMISSION Types of electron emission Application of electron emission
2. MEASURING INSTRUMENTS Concepts of measuring instrument Principles of operation and protection of measuring instruments
3. SEMICONDUCTOR Concepts of semiconductor Semiconductor materials (silicon, germanium etc.) Doping Formation of p-type and n-type semiconductors.
SEMICONDUCTOR DIODES Concept of diodes
Biasing of diodes
TRANSISTORS Concepts of transistor
OTHER SEMICONDUCTOR DEVICES Thermistor, diac, triac and thyristor, etc
INTEGRATED CIRCUITS 4. CIRCUIT ANALYSIS
ELECTRIC CURRENT Structure of atom Conductors and insulators Direct and alternating current Sources of direct current Sources of alternating current
RELATIONSHIP BETWEEN VOLTAGE, CURRENT AND RESISTANCE Current, voltage and resistance. Ohm’s law Simple calculation of current, voltage and resistance.
ELECTRIC POWER Concept of electric power Relationship between power, current and voltage. Other formulae for finding electrical power Calculation of electric power in a given circuit
CIRCUIT COMPONENTS Types of resistors, capacitors and inductors Symbols, signs and unit of measurement Colour coding and rating of resistors and capacitors
ELECTRIC CIRCUIT Electric circuit Circuit boards Circuit arrangement: series, parallel, series-parallel Calculation on circuit arrangement ALTERNATING CURRENT CIRCUITS R-L-C circuits Generator principles
POWER IN A.C. CIRCUITS
5. AMPLIFIERS
VOLTAGE AMPLIFIERS
POWER AMPLIFIERS
PUSH-PULL AMPLIFIERS OPERATIONAL AMPLIFIERS
6. POWER SUPPLY
D.C. POWER SUPPLY UNIT
RECTIFICATION
7. OSCILLATORS, MULTIVIBRATORS AND DIGITAL BASICS
OSCILLATORS
MULTIVIBRATORS (Non-sinusoidal) Principles of operation and applications
DIGITAL BASICS Number system Logic gates(Combinational) 8. COMMUNICATION SYSTEMS, TRANSDUCERS AND SENSORS Electromagnetic waves. characteristics of radio waves Principles of radio waves Stages of radio receiver Fault detection in radio receiver Transmitters and receivers
Methods of Communication
Transducers and Sensors Acoustic transducer
9. CONTROL SYSTEM
SERVO MECHANISM
10. MAGNETIC AND ELECTRIC FIELDS, ELECTROMAGNETIC INDUCTION/TRANSFORMERS Electromagnetic field
Electromagnetic induction
Self and mutual induction
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Qualitative treatment should include : Thermionic emission; photoemission; secondary emission and field emission. Relate it to diode, triode, tetrode, pentode, and cathode ray tube.
Qualitative treatment only which should include: Classification – analogue and digital Types and uses of multimeter, voltmeter, ammeter, ohmmeter, oscilloscope etc.
Qualitative treatment only.
Treatment should include operational principles of diodes
Type of diodes Diode ratings – voltage, current and power Application of diodes Construction of a simple circuit using a P-N junction diode Practical demonstration of I-V characteristics of P-N junction diode in the forward and reverse bias modes.
Meaning of transistor, biasing of transistor, Uses and advantages. BJT characteristics Advantages of transistor over valves Advantages of MOSFET over BJT
Formation, function and principles of Operation. Transistor as a switch, inverter, an amplifier Verification of BJT characteristics. Input, output and transfer characteristics Transfer configuration Qualitative treatment only – formation, functions and principles of operation Advantages over discrete components
Circuit symbols Principles of operation Applications.
Application of integrated circuits Explanation of RAM, ROM and EPROM Qualitative treatment only Uses of conductors and insulators Differences between direct and alternating current
Construction of simple circuit to demonstrate Ohm’s law Qualitative and quantitative treatments
Practical determination of the value of a fixed colour code resistor
Carry out practical wiring of different circuit arrangement
Qualitative and quantitative treatments should include – Concepts of capacitive reactance, inductive reactance and impedance – RL and RC circuits – Calculations of capacitive reactance (XC) and inductive reactance (XL) – Resonance frequency Principles of operation of an a.c. generator
Qualitative and quantitative treatments of – Power and power triangle – Power factor and its correction – Advantages and disadvantages of power factor correction – Calculation of power factor – Q-factor and bandwidth
Biasing methods. Treatment of the transistor as single stage. Common-emitter amplifier. Frequency response of an amplifier Advantages and disadvantages of negative feedback
Classification: Class A, Class B, Class AB,
Class C, application, power gain, methods of biasing and efficiency. Classification of power gain.
Qualitative treatment including matched and complementary pairs.
Properties of an ideal operational amplifier Inverting and non-inverting operational amplifiers(op-amps) Types of operational amplifiers Applications of op-amps Simple calculations involving inverting, non-inverting, summing amplifiers and voltage follower
Dry cells, solar cells, cadium cells, accumulators Batteries: Rechargeable and non-rechargeable
Qualitative treatment should include: – Rectification, regulation – Types of voltage regulator e.g. diac, triac, thyristor, series voltage regulator, transistorized electronic voltage regulator Functions of each block
Difference between positive feedback(oscillator) and negative feedback (amplifier) Principles of an oscillator Types of oscillators: Hartley, Colpitts, phase shift, tuned (load and crystal) oscillators Advantages of negative feedback Calculations involving negative feedbacks Block diagram of an oscillator Application of oscillator
Types of multivibrators (monostable, bistable and astable)
Different number system e.g. binary, octal and hexadecimal Simple calculation in binary number Conversion from one base to another and vice-versa Addition and subtraction of binary numbers
Qualitative treatments of AND, OR, NOT, NOR and NAND Logic gates using switching arrangements, truth table and Boolean expression
Relationship between velocity frequency and wave length Meaning of radio communication Modulation and demodulation Advantages of F.M. over A.M. Phase modulation (mention only)
Types of radio receivers Advantages of superheterodyne over direct input receiver Use faulty radio and detect and repair fault Project work on construction and designing of a simple radio receiver
Block diagrams of A.M. and F.M. transmitters Block diagrams of A.M. and F.M. superheterodyne radio receivers Block diagrams of mono and colour T.V.chrome receivers Functions of each block and direction of signal flow Qualitative treatment of T.V. standard (NTSC,PAL,SECAM,BIG)
Fibre optics, microwave, satellite, cellular phone, digital communication network, etc.
Meaning of transducers and sensors Principles of operation Types and uses to include: Acoustic, dynamic electrostatic, electromagnetic, capacitive, pressure sensor, photoelectric, proximity sensor etc. Thermistor as a temperature sensing device
Qualitative treatments only Types of acoustic transducers e.g. loudspeaker, microphone, earphone Principles of operation and function Application of acoustic transducers
Qualitative treatment only – Types of control circuits(open and close loop) – Principle of operation of open loop and close loop
Qualitative treatment only – Meaning – Principle of operation, types, uses and application e.g. in car, doors, booths etc. Trace magnetic lines of force current-carrying conductor Lenz’s and Faraday’s laws.
Definitions only Calculations involving energy stored in a coil Applications of electromagnetism Electric bell, solenoid, loudspeaker, buzzer, moving-coil instrument, moving-iron instrument, earphone and microphone
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