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Non Conventional Sources Of Energy Video Lecture | Geography for Class 8

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FAQs on Non Conventional Sources Of Energy Video Lecture - Geography for Class 8

1. What are non-conventional sources of energy?
Ans. Non-conventional sources of energy refer to alternative sources of energy that are different from traditional fossil fuels like coal, oil, and natural gas. These sources include solar energy, wind energy, hydroelectric power, geothermal energy, and biomass energy.
2. How does solar energy work?
Ans. Solar energy works by harnessing the power of sunlight and converting it into usable electricity. Solar panels, made up of photovoltaic cells, absorb the sunlight and generate direct current (DC) electricity. This electricity is then converted into alternating current (AC) through an inverter, which can be used to power homes, buildings, and other electrical devices.
3. What is the potential of wind energy?
Ans. Wind energy has a vast potential as a non-conventional source of energy. It is generated by using wind turbines to capture the kinetic energy of the wind and convert it into electrical energy. Wind power is a renewable and clean source of energy that can contribute significantly to reducing carbon emissions and dependence on fossil fuels.
4. How is hydroelectric power generated?
Ans. Hydroelectric power is generated by harnessing the energy of flowing or falling water. Dams are constructed to create reservoirs, and when water is released from the reservoirs, it flows through turbines, causing them to rotate. The rotation of turbines generates mechanical energy, which is then converted into electrical energy by generators.
5. What are the advantages of using non-conventional sources of energy?
Ans. There are several advantages of using non-conventional sources of energy. They are renewable, meaning they can be replenished naturally and are not depleted like fossil fuels. They are also generally cleaner, producing fewer greenhouse gas emissions and contributing to a healthier environment. Non-conventional sources also offer the potential for energy independence, as they are often locally available and can reduce reliance on imported fossil fuels. Additionally, they provide opportunities for decentralized power generation, giving individuals and communities more control over their energy production.
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