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In a hydraulic power plant, more electrical power can be generated if water falls from a greater height because:

In a hydraulic power plant, more electrical power can be generated if water falls from a greater height because: Correct Answer larger amount of potential energy is converted into kinetic energy.

CONCEPT:

Hydroelectric Power Plant:

  • The electricity produced from the kinetic energy of flowing water is called hydroelectricity and a plant that generates electricity on a large scale from flowing water is called a hydroelectric power plant.
  • The requirements for a hydroelectric power plant are a strong, fast flow of water and a significant drop down in which the water can fall.

EXPLANATION:

  • A storage dam (a high rise structure) is constructed to collect water in a large artificial lake (like Gobind Sagar Lake which collects water for Bhakra Dam).
  • In this process, the kinetic energy of water is transformed into its potential energy.
  • Water from the top of the dam is allowed to fall through pipelines over the blades of a turbine at the bottom of the dam.
  • In this process, the potential energy of water changes into its kinetic energy which is transferred to the turbine. Therefore option 2 is correct.
  • Moving turbine rotates the armature of a generator to produce electricity, i.e., the turbine changes the kinetic energy of water into electricity.
  • After having run the turbines, water collects in a control dam.
  • Water in the control dam can either be made to fall again through a height to produce electricity in the same way as discussed earlier or can be sent to canals for irrigation.

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