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Renewable Energy Video Lecture | Famous Books for UPSC Exam (Summary & Tests)

553 videos|1115 docs|418 tests

FAQs on Renewable Energy Video Lecture - Famous Books for UPSC Exam (Summary & Tests)

1. What is renewable energy?
Ans. Renewable energy refers to energy that is generated from natural resources that are constantly replenished, such as sunlight, wind, rain, tides, and geothermal heat. Unlike fossil fuels, which are finite and contribute to environmental pollution, renewable energy sources are clean and sustainable.
2. How does solar energy work?
Ans. Solar energy works by converting sunlight into electricity through the use of photovoltaic (PV) cells. These cells, typically made of silicon, absorb photons from sunlight and generate an electric current. The electricity produced can be used immediately or stored in batteries for later use.
3. Is wind energy a reliable source of electricity?
Ans. Yes, wind energy is a reliable source of electricity. Wind turbines convert the kinetic energy of the wind into mechanical power, which is then transformed into electricity. While wind speed may vary, modern wind turbines are designed to capture energy from a wide range of wind speeds, ensuring a consistent supply of electricity.
4. What are the benefits of using renewable energy?
Ans. There are several benefits of using renewable energy. Firstly, it reduces greenhouse gas emissions, helping to combat climate change. Secondly, it decreases dependence on finite fossil fuel resources, enhancing energy security. Additionally, renewable energy sources often have lower operational costs and create job opportunities in the clean energy sector.
5. Can renewable energy sources meet our energy demands?
Ans. Yes, renewable energy sources have the potential to meet our energy demands. With advancements in technology and increasing investment in renewable energy infrastructure, the production and storage of renewable energy are becoming more efficient and cost-effective. However, it will require a comprehensive transition and significant investment in renewable energy systems to fully replace fossil fuels.
553 videos|1115 docs|418 tests

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