This PSEB 6th Class Science Notes Chapter 12 Electricity and Circuits will help you in revision during exams.
PSEB 6th Class Science Notes Chapter 12 Electricity and Circuits
→ An electric cell is a source of electric energy.
→ The electric cell has two terminals: one positive terminal (+) and the other negative terminal (-).
→ The electric bulb has one filament which is connected to its terminals.
→ On passing the electric current, the bulb begins to glow.
→ In a closed electric circuit, the electric current passes from one terminal of the electric cell to the other terminal.
→ The switch is a simple device that is used to either break the electric circuit or to complete it.
→ Materials that allow an electric current to pass through them, are called conductors.
→ Materials that do not allow an electric current to pass through them are called insulators.
→ Light-emitting thin wire of the bulb is called filament of the bulb.
→ On the breaking of filament, the bulb becomes fused.
→ The complete path of electric current is called an Electric circuit.
→ Bulb: It is a simple device that gives out light on passing an electric current through it.
→ Electric conductor: Materials that allow current to pass through them are called electric conductors.
→ Electric cell: Electric cell is a source of electricity. The chemicals stored in it produce an electric current.
→ Electric circuit: The path of current from one terminal to another terminal, through a switch, bulb, and switch, is called an electric circuit.
→ Filament: A small thin metallic wire (Tungsten) inside a bulb that glows when current is allowed to pass through it, is called a filament.
→ Insulators: Materials that do not allow current to pass current through them are called insulators.
→ Switch: A simple device that is used to break or complete a circuit is called a switch.
→ Terminal: The point of entering or exit of electric current is called terminal.
→ An electric cell has two terminals:
- Positive terminal
- Negative terminal.