Lesson 1 Simple Circuits: In a simple series circuit everything is connected in one loop. That means that there are no points where a current can split or join (called junctions). Circuit diagram represents an actual electrical circuit through the use of signs and symbols. Rules for a circuit diagram: 1. Use correct symbols - Each component of an electrical circuit has a designated symbol to represent it. A component is: a wire, battery, switch or light bulb 2. Wires are represented by straight lines. - How: Use a ruler. 3. All wires have to be connected without gaps. 4. The length of the wires doesn't have to represent the true length of the wires. Lesson 2 Transformer The transformer converts voltage of around 240 volts to a much safe 2-12 volts. Outputs and Inputs DC - Direct Current AC - Alternating Current ![]()
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