Balbharati solutions for Science and Technology 2 [English] 10 Standard SSC Maharashtra State Board chapter 5 - Towards Green Energy [Latest edition]

Remake the table taking into account relation between entries in three columns. 

Write any two problems associated with the thermal type of power generation.

Other than thermal power plant, which power plants use thermal energy for power generation? In what different ways is the thermal energy obtained? 

Which type/types of power generation involve maximum number of steps of energy conversion? In which power generation is the number minimum? 

Solve the following crossword puzzle.
a. Maximum energy generation in india is done using..... energy.
b. ...... energy is a renewable source of energy
c. Solar energy can be called.... energy.
d .... energy of wind is used in wind mills.
e. ..... energy of water in dams is used for generation of electricity.

Explain the difference between Conventional and Non-conventional sources of energy.

Explain the difference. 

Thermal electricity generation and solar thermal electricity generation. 

What is meant by green energy? Which energy sources can be called as green energy sources and why? Give examples. 

Energy obtained from fossil fuels is not green energy.

Saving energy is the need of the hour.

How can we get the required amount of energy by connecting solar panels?

Answer the following questions. 

 What are the advantages and limitations of solar energy?

Explain with diagram step-by-step energy conversion in  Thermal power plant 

Explain with diagram step-by-step energy conversion in Nuclear Power Plant. 

Explain with diagram step-by-step energy conversion in Solar thermal power plant.

Explain with a diagram of step-by-step energy conversion in Hydroelectric power plant.

Give scientific reason.

The construction of turbine is different for different types of power plants.

Give scientific reason: 

It is absolutely necessary to control the fission reaction in nuclear power plants.

Give a scientific reason:

Hydroelectric energy, solar energy and wind energy are called renewable energies.

Give scientific reason

It is possible to produce energy from mW to MW using solar photovoltaic cells.

Draw a schematic diagram of solar thermal electric energy generation.

Give your opinion about whether hydroelectric plants are environment friendly or not? 

Draw neat and labelled diagram. 

 Energy transformation in solar thermal electric energy generation. 

Draw neat and labelled diagram.

One solar panel produces a potential difference of 18 V and current of 3 A. Describe how you can obtain a potential difference of 72 Volts and current of 9 A with a solar array using solar panels. You can use sign of a battery for a solar panel. 

Write short note on Electrical energy generation and environment.