The AQA A-level Physics Paper 3B (June 2023), Option E (Electronics), focuses on digital logic, sensor applications, and communication systems. Topics include design and modification of binary counters, Boolean logic for seven-segment displays, and strain gauge circuitry for mechanical measurements. The paper explores operational amplifiers, inverting amplifier configurations, and their bandwidth properties. Communication sections examine satellite data transmission, processing delays, and advantages of fibre-optic communication. Practical problem-solving integrates circuit analysis, signal processing, and logic gate design. Keywords: AQA Physics, electronics, binary counter, Boolean logic, strain gauge, operational amplifier, communication systems, fibre-optics.