A complete design and make project based on the design and construction of a torch using QTC pills as switches, two LEDS and a thyristor. The design and building of the project is divided into eight stages which can form the basis of individual sessions. The project includes the following detailed powerpoints: Introduction - 10 pages setting out the design brief and providing detailed 3D renderings of an examplar product Prototyping - 6 pages explaining the importance of prototyping Making the case - 11 pages demonstrating how a 2D package and laser cutter are used to produce torch body by laminating acrylic QTC Circuit: 13 pages describing how QTC works and how it is applied to the project Building the circuit - 2 pages showing PCB layout, component list and PCB design which can be used to manufacture the PCB Making the battery holder - 5 pages showing how copper strip is moulded to form a battery holder Laminating: 5 pages briefly setting out how acrylic can be laminated to make 3D models Finishing Techniques - 11 pages showing how files, wet and dry and buffing machines are used

Twenty bite-size snippets of key information relating to Electrical Principles / Science. Useful for revision and posters. It includes the following: Cells & Batteries: The difference between them Producing Heat: The effect of current flowing through a resistance Resistors in series: Example showing how total series resistance is calculated **Resistors in parallel: **Example showing how total parallel resistance is calculated **Resistors in parallel 2: **Example showing an easier way of calculating total parallel resistance Capacitor voltage ratings: Explains the effect on voltage rating for capacitors connected in series and parallel Capacitors in series: Examples showing how total series capacitance is calculated **Capacitors in series 2: ** Example showing an easier way of calculating total series capacitance Capacitors in parallel: Example showing how total parallel capacitance is calculated Charge in capacitors: Example showing how the stored charge is calculated RC Timing: Showing how the RC time constant is calculated **Magnetism: **Applications of soft iron, steel and copper **Induction: **Gives a brief description of mutual induction, self induction and dynamic induction **Transformers: **Labeled diagram of transformer and example calculation showing how secondary voltage is calculated **Self induction: **Explanation of self induction and example of calculating EMF Capacitor theory: Showing how capacitance is calculated if the physical characteristics are known Force, Mass and Acceleration: Example of F = m x a **Inductive and Capacitive Circuits: **Brief description on current and phase in capacitors and inductors **SI Units: **A table showing common electrical units **Formulae: **A table showing common electrical formulas

Sheet to record assessment of practical activities. FIles provided in PDF and PUB format to allow for editing.

Images showing the layout of 8pin DIL sockets and how they relate to 741 Op-Amp.

Enables students to plan breadboarded circuits before building.