Learn About Circuits
This introductory video will help you learn the difference between open/closed circuits, and how a switch changes the flow of the electric current.
In this second video, the teacher uses simulation software to show how electrons flow through both circuit types: series and parallel electrical circuits.
What is a circuit diagram? A circuit diagram (also known as an electrical diagram, elementary diagram, or electronic schematic) is a simplified graphical representation of an electrical circuit. ... The diagram does not show the physical arrangement of components.
Parallel Circuit Diagram
This image on the far left shows the circuit arrangement using wires, two light bulbs, a switch and a power source (in this case it is a battery). The schematic diagram to the left uses the symbols for the light bulbs and a switch and the power source. Look below for other symbols that can be used when creating your circuit diagrams.
Creating a Circuit Diagram
Use these charts when creating diagrams of circuits
Is there a computer program that can be used to help one create a circuit diagram? Yes! visit https://www.circuit-diagram.org/
Multimeter
When preparing your project for competition, you will be asked to use this multimeter to measure voltage, amperage, and resistance. This instrument measures the electric potential difference between two points in an electric circuit (voltage) and the current in the circuit (amperage). Electric currents are measured in amperes (A). Resistance is an electrical quantity that measures how the device or material reduces the electric current flow through it. The resistance is measured in units of ohms (Ω).