Slide 1 - Circuit Diagrams

• Note: This MIX does not include voice lecture. Please read through and complete the practice problems.

Slide 2 - Purpose

• Circuit diagrams let us represent a circuit on paper by using symbols for all the parts.
• Circuit diagrams show electrical connections, NOT the physical layout of a circuit.
• We call the parts of a circuit “elements”. Bulbs, batteries and switches are all elements.

Slide 3 - Batteries

• Long Line = Positive Terminal
• Battery holders are not shown on diagrams

Slide 4 - Bulbs

• Bulb holders are not shown on diagrams
• OTHER

Slide 5 - Switches

Slide 6 - Electrical Connections

• A straight line does not represent wires in circuit diagrams.
• A straight line represents a connection between two elements.
• These two diagrams represent the same circuit.

Slide 7 - Circuit Drawing

• Circuit Diagram
• Circuit drawings show the physical layout of a circuit.
• Circuit diagrams show the electrical connections of a circuit.
• A single circuit diagram can be drawn many ways

Slide 8 - A. In which of the following circuits will the bulb light?B. Draw a circuit diagram for the four arrangements of a battery, bulb, and wires. C. Which of these circuits have identical diagrams?

Slide 9 - Draw a circuit diagram for each circuit. Draw it as simply as possible.