Circuits A deeper look into different types of

Circuits A deeper look into different types of circuits

What we’re now learning: Circuit Series Parallel

Series Circuit • A series circuit has a single path for the current

Series Circuit • There is only one path for the electrons to flow • This means the current must flow through all loads

Series Circuit • Example: • Christmas lights (old version)

Series Circuit • What is the problem with this type of circuit? ?

Parallel Circuit • A Parallel Circuit has multiple (at least 1) paths for the current to flow

Parallel Circuit • Charges can move through several different paths

Parallel Circuit • Example: • Household wiring

Parallel Circuit • What is good about this type of circuit?

Which is which? ? • What is example #1? • What is example #2?

Switch • In a circuit, it is important to be able to turn it off and on. • A switch is a device that can open or close a circuit. • A switch can be used to turn on or off the circuit, in this example the light.

Switches • If a switch is ON, the circuit is closed • IF the switch is OFF, the circuit is open

Switches Is this switch ON or OFF? ? Is the circuit OPEN or CLOSED?

Short Circuits • An electrical short circuit occurs when an electrical connection is made where one should not be • Caused when: • Wires touch when they shouldn’t • Water touches the circuit • The circuit overheats

Short Circuits • Why this bad? ? • Can result in damage to the components (light bulb, battery, etc) • Electrical shock or fire may occur

Short Circuits • How can this be prevented? • FUSES! • Fuses prevent unwanted short circuits • Fuses have metal links inside them that open when overheated • This stops the current from flowing