1. Series and Parallel Circuits

2. Circuits
Can either be series or parallel.

3. Series Current only takes one path for electrons
Current flows through every part of the circuit

4. Lights in a Series

5. Adding Resistors to Series:
Current in the circuit will go DOWN (lights will dim)
If you remove a light bulb or one burns out—all go out!

6. Parallel Circuits
More than one path for current to flow

7. Removing a Light Bulb
If you remove a light bulb or one burns out, the others stay on

8. Lights in Parallel

9. Voltage in Parallel
Voltage is the same across each branch – because each branch is on the same wire

10. Batteries in Series and Parallel:

11. In series—The voltage is increased.
In parallel—No change in voltage; these batteries will last longer!

12. One More FINAL Thing: Two Types of Current:
DC—Direct Current—produced by solar cells and chemical cells (batteries)
Current only flows in one direction.

13. 2nd type of current: AC—Alternating Current
Current flows back and forth (alternates)
Found in homes
Generators produce AC current