1. Circuits : Series vs Parallel
TAKS Objective 5
Circuits : Series vs Parallel

2. There are 3 basic circuit components: Current, Resistance and Voltage
A current is the flow of electrons through a wire or any conductor
Resistance is the tendency for a material to oppose the flow of electrons, changing electrical energy into thermal energy and light
Voltage is a quantitative expression of the potential (force or pressure) difference in electrical charge between two points in an electrical field

3. TAKS Formula Chart
According to your TAKS formula chart, what is a current equal to? Current = Voltage or I = V Resistance R The unit for current is amperes (A) The unit for voltage is volts (V) The unit for resistance is ohms ( Ω )

4. What does it look like? resistance current symbol for battery voltage
Note: The long side of the battery symbol is always positive and the short side of the battery symbol is always negative

5. The flow of currents
Currents flow from the positive side of the battery to the negative side of the battery

6. There are two types of currents
Series
Parallel

7. Series Circuits Series circuits are the most simple.
It only has one path for the current to travel.
Contains an energy source, a path, and a load (something for it to affect, like a lamp)

8. Can you think of an example of a series circuit?
Most Christmas lights have parallel circuits

9. Parallel Circuits
Parallel circuits provide more than one path for the current to travel.
Most circuits are parallel, since if one lamp goes out, the others can stay lit.

10. Can you think of an example of a parallel circuit?

11. What type of circuit is this?
Parallel

12. What type of circuit is this?
Series

13. Which circuit is series? Which circuit is parallel?B

14. Let’s try some practice problems?