GCSE Electronics (Eduqas / WJEC)

20 free revision lessons in 2 units. Open the course or go straight to a lesson.

Discovering Electronics

The fundamental building blocks: systems thinking, circuit laws, resistive components, switching, diodes and combinational logic.

1. Electronic Systems and Sub-Systems
2. Circuit Symbols, Voltage and Current Rules
3. Ohm's Law, Power and Energy in Circuits
4. Resistors in Series and Parallel; the E24 Series
5. Sensing Circuits and Voltage Dividers
6. Transistor and MOSFET Switching Circuits
7. Voltage Comparators
8. Diodes, Half-Wave Rectification and Zener Voltage Regulation
9. Logic Gates, Truth Tables and Boolean Algebra
10. Designing Logic Systems and NAND-Only Implementations

Application of Electronics

Putting components into working systems: op-amps, 555 timers, counters and flip-flops, interfacing and microcontroller control.

1. Amplifiers: Gain, Bandwidth and Clipping
2. Inverting and Non-Inverting Op-Amp Circuits
3. Summing Amplifiers and Audio Mixer Systems
4. RC Time Delays and the 555 Monostable
5. 555 Astable Oscillators and Mark-Space Ratio
6. D-Type Flip-Flops, Latches and Up-Counters
7. Binary, BCD and Decade Counters with 7-Segment Displays
8. Schmitt Inverters and Interfacing Analogue to Digital
9. Microcontrollers and Flowchart Programming
10. Microcontroller Applications and System Evaluation

How to revise Electronics

• Retrieval Practice
• Spaced Repetition
• Interleaving
• Dual Coding
• Elaborative Interrogation
• Knowledge Organisers
• Timed Practice

All subjects