General Science • PhysicsMedium
What is the primary physical principle underlying the generation of electricity in a hydroelectric power plant?
A. Conversion of gravitational potential energy of water into kinetic energy and then electrical energy✓ Correct Answer
B. Conversion of chemical energy into nuclear energy
C. Conversion of thermal energy directly into inductive current
D. Conversion of magnetic hysteresis into electrostatic potential
💡 Solution & Explanation
Hydroelectric power plants operate by converting the gravitational potential energy of water stored at a height into kinetic energy as it flows down, which then spins turbines to generate electrical energy. This mechanism relies entirely on mechanical conversion rather than chemical or nuclear reactions.
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