• An electric circuit can be represented using

a diagram.

• Each part of the circuit is represented with

a symbol.

• By reading a circuit diagram, it is possible

to determine how the circuit works and how

to repair it when it does not function

properly.

Circuit Diagrams 13.1

circuit diagram

Circuit Diagrams 13.1

circuit diagram

Conductors

Circuit Diagrams 13.1

circuit diagram

Energy Sources

Circuit Diagrams 13.1

circuit diagram

Loads

Circuit Diagrams 13.1

circuit diagram

Switch

Circuit Diagrams 13.1

circuit diagram

Using the proper symbols, draw a circuit diagram showing:

• 1 cell• 1 light bulb • 1 open switch on the negative side of the bulb

• In a series circuit, electrons flow

through only one path.

• Loads are connected in a chain, one

after another in one continuous loop.

• When one load does not work, the

whole chain of loads stops working

because electrons cannot flow.

13.1

series circuit

Series Circuits

13.1

series circuit

Series Circuits

• In a parallel circuit, electrons can

flow through more than one path.

• Loads are connected in different

branches that are connected to the

energy source.

• When a load does not work in one

branch, the loads in the other branches

continue to function because electrons

can flow through another path.

13.1

parallel circuit

Parallel Circuits

13.1

parallel circuit

Parallel Circuits

Ex 1) Draw a circuit diagram showing an electric cell, a switch, and 3 lamps connected in series

Ex 2) Draw a circuit diagram showing a 2-cell battery with 3 lamps connected in parallel. Include a switch for controlling each lamp.

Homework:

13.1

circuit diagram

pg. 554 #1-7