Question

Describe how hydro energy can be converted into electrical energy. Write any
two limitations of hydro energy.
<OR>​

Answer 1

Conversion of hydro energy into electrical energy:

Large amount of fossil fuels are burnt everyday in power stations to heat up water to produce steam which further runs the turbine to generate electricity. Many thermal plants are set up near coal or oil fields. In these plants fuel is burnt to produce heat energy which is converted into electrical energy.

Limitations of hydro energy:

(i) Dams are very expensive to build.

(ii) It is not the biggest source of energy on earth.

Thank me..

Answer 2

Answer:

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

___________________________________________________________

In hydropower plants, a large amount of water is stored at a height. This stored water is then allowed to fall on rotating turbines. The force of the running water (kinetic energy of running water) causes the turbines of the plant to spin. The rotating turbines then spin the generator, which ultimately produces electricity. In this manner, the kinetic energy of the running water is converted into mechanical energy and then finally into electrical energy.

Two limitations of Hydropower Energy are:

Causes a change in the course of rivers and lot of land is submerged under water.

Fish and wildlife are affected drastically.

...................................................................................................................................................

Explanation: