ELECTRICITY…..
Electricity is the flow of negatively charged particles called electrons through conductive materials,
acting as a versatile, secondary energy source derived from primary sources like coal, nuclear, or renewables.
It powers modern life via electric currents (moving electrons) or creates static charges, fundamental to electromagnetism.
Key Aspects of Electricity:
Generation: Produced in power plants by converting primary energy—such as burning fossil fuels to make steam, nuclear fission, or moving water/wind—to spin generators.
How it Works: Electrons move from negative to positive terminals when a potential difference (voltage) exists, creating a circuit.
Key Concepts:
Voltage (): The pressure that pushes electrons, measured in Volts.
Current (): The rate of electron flow, measured in Amperes (amps).
Resistance (): The material’s opposition to flow, measured in Ohms (
).



Types:
- Current Electricity: A constant flow of electrons.
- Static Electricity: Imbalance of positive/negative charges within a material.
- Materials: Conductors (copper, silver) allow electron flow, while insulators (plastic, rubber) block it.
