Towards Green Energy — Chapter Summary
Maharashtra Board · Class 10 · Science
Summary of Towards Green Energy for Maharashtra Board Class 10 Science. Part of the Maharashtra Board Class 10 Science syllabus.
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Overview
Notice how every major source of electricity is linked to one common idea: energy is changed from one form to another before electricity is produced. In thermal, nuclear, gas, hydroelectric, wind, and solar thermal systems, a turbine and generator are used. In solar photovoltaic cells, electricity i
Key Concepts
A changing magnetic field around
A changing magnetic field around a conductor generates a potential difference across it. This change can happen by rotating a magnet near a conductor
A generator produces electrical power based
A generator produces electrical power based on electromagnetic induction. A turbine with blades is rotated by a flow of liquid, gas, or steam, and thi
Coal is burnt in a boiler
Coal is burnt in a boiler to heat water and produce high temperature, high pressure steam. The steam rotates the turbine, which drives the generator.
Uranium
Uranium-235 absorbs a neutron and becomes Uranium-236. Uranium-236 is unstable and splits into barium and krypton, releasing three neutrons and 200 Me
Pressurised air is sent into
Pressurised air is sent into a combustion chamber using a compressor. Natural gas burns there, producing hot gas that runs the turbine and generator.
Learning Objectives
- Understand how electrical energy is generated using different energy sources.
- Explain electromagnetic induction and the working of a generator.
- Describe thermal, nuclear, natural gas, hydroelectric, wind, solar photovoltaic, and solar thermal power generation.
- Compare green energy sources with fossil fuel and nuclear-based sources.
- Recognize the problems caused by fossil fuels and nuclear waste.
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Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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