Circuit Diagram 1 - The Basics of a Circuit Diagram

Not the actual components and connections are shown in a circuit diagram, but an abstract representation with defined symbols.

With conductors you connect individual components in a circuit. In a circuit diagram conductors are indicated by a line...

Circuit symbols conductor (i) and component (ii).

Circuit diagram of two connected components.

For conductor crossings you can distinct two different representations...

Circuit diagram of connected components. Component 1 is connected with component 4. Component 2 is connected with component 3.

Circuit diagram of connected components. Component 1 is connected with component 2 and component 3.

If there is an electrical contact at a conductor junction, you draw clearly a dot. In a conductor crossing without contact you leave out the a dot.

So how do you draw a complete circuit diagram...?