In class 7 science, electricity is the flow of electrons through a conductor, and is covered in the chapter on electric current and its effects.
What is electricity?
- Electricity is a type of energy
- It is created when electrons move between two points that have a potential difference
- This movement of electrons creates an electric current
What is an electric circuit?
- An electric circuit is a closed path that allows electric current to flow
- It includes a power source, conductors, and a load
- A switch or key controls the flow of current in the circuit
What are the effects of electricity?
- Heating effect: When electric current passes through a conductor, it generates heat
- Magnetic effect: Electric current can create a magnetic field
Examples of electricity in use
- Electric heaters, irons, and toasters use the heating effect of electricity
- Electric bells, motors, and transformers use the magnetic effect of electricity
- Electric bulbs use the heating effect of electricity to produce light
- Electromagnets use the magnetic effect of electricity to lift heavy objects
STUDENT KEEP PEN AND NOTE BOOK
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