1. Circuits

2. The Basics

3. The Symbols Wire Resistor Light Bulb Plug Battery Open Switch Closed Switch Capacitor

4. Circuit States Open – Open switch – No current flows Closed – Closed switch – Current flows Short Circuit

5. Battery emf Terminal Voltage

6. Series Circuit

7. Total Resistance: Series

9. Parallel Circuit

10. Total Resistance: Parallel

12. SeriesParallel Circuit Diagram Current I total = I 1 + I 2 + …I total = I 1 = I 2 = … Potential Difference V battery = V 1 + V 2 +…V battery = V 1 = V 2 = … ResistanceR eq = R 1 + R 2 + …