Science Form 3 Chapter 6 Short Notes //free\\ ●

Here are the concise short notes for Science Form 3 Chapter 6:

The National Grid Network ensures a steady power supply across the country. Power Station ( →right arrow Step-up Transformer ( →right arrow National Grid →right arrow Step-down Transformer (Substation) →right arrow Science Form 3 Chapter 6 Short Notes

| Source | Renewable? | Advantage | Disadvantage | | :--- | :--- | :--- | :--- | | (Dam) | Yes | No pollution, low cost after building | Destroys habitats (floods forest) | | Thermal (Coal/Gas) | No | High power output | Air pollution, global warming | | Nuclear | No (Uranium is finite) | Very high output, no air pollution | Radioactive waste, risk of meltdown | | Solar | Yes | Silent, no fuel cost | Only works during day, large area needed | | Wind | Yes | No pollution | Noisy, kills birds, only windy areas | | Biomass | Yes | Uses waste materials | Requires large land to grow fuel | Here are the concise short notes for Science

Modern homes use a single-phase or three-phase wiring system. Live Wire (Brown): Carries current to the appliance. Neutral Wire (Blue): Completes the circuit. Live Wire (Brown): Carries current to the appliance

Decreases voltage (Fewer turns on the secondary coil). Formula: = Voltage and = Number of turns). 4. Transmission and Distribution of Electricity