Question
Download Solution PDFOn which of the following scientific principles does a hydroelectric power generator work?
This question was previously asked in
RPF Constable 2024 Official Paper (Held On 03 Mar, 2025 Shift 1)
Answer (Detailed Solution Below)
Option 1 : Conversion of gravitational potential energy into electrical energy using flowing water
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Download Solution PDFThe correct answer is Conversion of gravitational potential energy into electrical energy using flowing water.
Key Points
- Hydroelectric power plants convert the gravitational potential energy of water stored at a height into electrical energy.
- The process involves water flowing from a high elevation through turbines, which then drive generators to produce electricity.
- The turbines and generators are the critical components in this conversion process, making use of the kinetic energy of flowing water.
- Hydroelectric power is a major source of renewable energy, contributing significantly to the global energy mix.
- Examples include large-scale facilities like the Hoover Dam in the USA and the Three Gorges Dam in China, which are among the largest hydroelectric power plants in the world.
Additional Information
- Potential Energy: The energy possessed by an object due to its position relative to other objects, stresses within itself, its electric charge, or other factors.
- Kinetic Energy: The energy possessed by an object due to its motion. In the context of hydroelectric power, it refers to the energy of flowing water.
- Renewable Energy: Energy from sources that are naturally replenishing but flow-limited, such as wind, solar, and hydro power.
- Turbine: A machine for producing continuous power that is typically powered by water, steam, gas, or air. In hydroelectric plants, water turbines convert water flow into mechanical energy.
- Generator: A device that converts mechanical energy into electrical energy. In hydroelectric power plants, generators are driven by turbines to produce electricity.
Last updated on Jun 2, 2025
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