Science: Electricity : Components of an electric circuit

Battery(batteries)

• A battery has a negative pole and a positive pole.
• When the two poles of the battery(batteries) are connected in an electric circuit, electricity flows through the circuit. 

Wires

• Electricity flows from one component to another through wires.
• Wires are usually made of copper because it allows electricity to pass through easily.
• Wires are covered with electrical insulators such as plastic or rubber to prevent the electric current from leaking out of the circuit.

Switch

• A switch is used to control the flow of electricity in a circuit.
• A switch either break or completes an electric circuit.
• When the switch is open, there is a gap/break in the electric circuit and electric current cannot flow through the circuit.
• When the switch is closed, electric current can pass through the electric circuit, the circuit is complete.

Bulb

A bulb is an electrical device that is often used in a circuit.

The bulb consist of:

• 1)Glass bulb-it prevents filament from getting damaged.
• 2) Inert gas(Argon). It is a non-reactive gas and does not react with the filament at high temperatures.
• 3) Filament-Made of tungsten, it produces light and heat when electricity pass through.
• 4/5/6/7/8)Wires-connects filament to metal tip and metal casing.

         9/10)Metal casing-Connected to other components of the electric circuit.
         11) Metal tip-Connected to other components of the electric circuit.