Please enable JavaScript.
Coggle requires JavaScript to display documents.
Electricity - Coggle Diagram
Electricity
Symbols of electric circuit parts
Bulb
One battery
Three batteries
Open switch
Closed switch
Wire
Parts in a bulb
Glass Bulb
Prevents the filament from being damaged
Filament (tungsten)
rovides light and heat when electric current passes through
Wire
Contains filament to metal tip and metal casing
Metal Casing
Connected to other components of the electric circuit
Metal Tip
Connected to other components of the electric circuit
What A Simple Electric Circuit Is Made Of
bulb
It is an electrical device that is often used in a circuit.
it consists of:
Metal Casing
Connected to other components of the electrical circuit
Metal Tip
Connected to other components of the electrical circuit
Wire
Connects filament to metal tip and casing
Filament (tungsten)
Produces light and heat when an electrical circuit passes through
Glass Bulb
Prevents filament from getting damaged
wires
Electric currents normally flows through the wires
Wires are covered with material such as rubber to prevent any electricity to leak out of the circuit
switch
Used to control the flow of electric current in a circuit
When the switch is opened, there is a gap. Electric current cannot flow through the gap in the circuit
energy source (battery)
A battery has a negative and a positive end
When two poles of a battery are connected in a closed circuit, electric currents flows through the circuit
Circuit Tester
Use
To distinguish between electrical conductors and insulators
Process
Connect to that material to the circuit
Bulb does not light up
Electric current cannot flow through the electrical insulator so the circuit remains open
Bulb lights up
Object closes the gap by allowing electric current to flow through it
Electrical Conductors and Insulators
Conductors
Materials that allow electrical currents to flow through them are called conductors of electricity or electrical conductors
Types of electrical conductors
Gold
Silver
Copper
Insulators
Materials that do not allow electrical currents to flow through them are called poor conductors of electricity or electrical insulators
Types of electrical insulators
Wood
Plastic
Cotton
Air
Cloth
Clay
Glass
Open Circuit
When the components of a circuit are not properly connected, there will be a break/gap in the circuit
Solution
A switch can be used to close the circuit
Electric current cannot pass through the gap
Series and Parallel Circuits
Series Circuits
One path for electric current to pass through
If one bulb is removed, electric current will not flow
Parallel Circuits
More than one path for electric current to pass through
If one bulb is removed, electric current will still be able to flow
Light Bulb
Lights up when we use wires to connect it properly to a working battery
Lights up
Metal tip and metal casing are connected to different ends of the battery
Does not light up
Metal tip or casing is not connected to the battery
Too much electric current flows through the bulb and the filament melts
