Electronics (6063)

20 sections available · 55 chapters available

Free Electronics (6063) study notes for GCE O-Level students. Each chapter covers a key topic with examples and practice prompts you can continue inside the thinka app.

Electronic Systems

Current Electricity

  • SI units

  • Standard scientific notation and prefix form

  • Conventional current and electron flow

  • Charge, e.m.f. and potential difference

  • Resistance and Ohm's law

  • Measurement of voltage, current and resistance

  • Electrical energy and power

Resistors

    Resistors & Circuit Theories

    • Resistivity

    • Types of resistors

    • Colour code

    • Effective resistance

    • Basic terms in circuits

    • Series and parallel circuits

    • Voltage and current dividers

    • Kirchhoff's voltage and current laws

    Circuit Theories

      Alternating Currents

        Alternating Currents & Capacitors

        • Characteristics of alternating current/voltage

        • Types of AC waveforms

        • Capacitor structure and working principle

        • Capacitance

        • Charging and discharging a capacitor

        Capacitors

          Semiconductor Diodes

          • Diode structure and working principles

          • Half-wave and full-wave rectification

          • Light-emitting diode (LED)

          • 7-segment display

          • Zener diode and its applications

          • Infrared diodes and photodiodes

          Transducers, Transistors & Amplifiers

          • Basics of input and output transducers

          • Thermistor, light-dependent resistor (LDR) and microphone

          • Loudspeaker, buzzer, motor and electromechanical relay

          • BJT structure and working principle

          • Operating regions

          • BJT applications

          • Operational amplifiers

          Digital Fundamentals & Logic Gates

          • Analogue and digital signals

          • Pull up/down resistors

          • 7-segment display module

          • Basic logic gates

          • Universal gates

          • Integrated Circuits (ICs)

          Input and Output Transducers

            Bipolar Junction Transistors and Operational Amplifiers

              Sequential Logic & Application ICs

              • Sum-of-Products Boolean expression

              • Boolean algebra and Karnaugh Map

              • Applications of combinational logic

              • NOR gate S-R Latch

              • Debounced Switch

              • LM311 voltage comparator IC and its applications

              • 555 timer IC and its applications

              • 74390 4-bit decade counter IC and its applications

              Introduction to Digital Electronics

                Engineering Design Process

                • Project management

                • Project realisation

                • Circuit design and computer simulation

                • Test and measurement

                • Documentation of project

                Basic Logic Gates

                  Combinational Logic Circuits

                    Set-Reset (S–R) Latches

                      Voltage Comparator, Timer and Counter

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