Question

In a hydroelectric power plant, more electrical power can be generated if the water falls from a greater height, because ____.

• A. its temperature increases
• B. larger amount of potential energy is converted into kinetic energy
• C. the electrical energy production decreases with increase in height of the water column
• D. more water molecules dissociate into ions

Answer 1

The correct option is B

larger amount of potential energy is converted into kinetic energy

In a hydroelectric power plant, more electrical power can be generated if water falls from a greater height because larger amount of potential energy is converted into kinetic energy. More is the kinetic energy, more is the speed of rotation of the turbine blades. This leads to higher production of electricity.