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Question
Give scientific reasons
a. The construction of turbine is different for different types of power plants.
b. It is absolutely necessary to control the fission reaction in nuclear power plants.
c. Hydroelectric energy, solar energy and wind energy are called renewable energies.
d. It is possible to produce energy from mW to MW using solar photovoltaic cells.
a. The construction of turbine is different for different types of power plants.
b. It is absolutely necessary to control the fission reaction in nuclear power plants.
c. Hydroelectric energy, solar energy and wind energy are called renewable energies.
d. It is possible to produce energy from mW to MW using solar photovoltaic cells.
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Solution
a. The construction of turbine is different for different types of power plants. This depends on the type of energy source used for driving the turbine. Like in thermal power plants, steam turbine is used whereas in hydro-power plant, water turbine is used.
b. If fission reaction in nuclear power plants is not controlled, then enormous amount of heat released during this process will lead to explosion of the plant and cause fatal destruction to environment and mankind. Thus, it is absolutely necessary to control the fission reaction in nuclear power plants.
c. Hydroelectric energy, solar energy and wind energy are called renewable energies because they are abundant in nature and can be regenerated or replenished again and again. These will never extinct even with their excessive use.
d. Solar photovoltaic cells can be arranged according to the requirement of electric power. If power requirement is within mW, use of few number of photovoltaic cells will be able to achieve this much power. But, if the requirement of power is in MW, then large number of cells are grouped together to form a solar panel. Then, large number of solar panels are connected in series and parallel to get the required electric power. Thus, it is possible to produce energy from mW to MW using solar photovoltaic cells.
b. If fission reaction in nuclear power plants is not controlled, then enormous amount of heat released during this process will lead to explosion of the plant and cause fatal destruction to environment and mankind. Thus, it is absolutely necessary to control the fission reaction in nuclear power plants.
c. Hydroelectric energy, solar energy and wind energy are called renewable energies because they are abundant in nature and can be regenerated or replenished again and again. These will never extinct even with their excessive use.
d. Solar photovoltaic cells can be arranged according to the requirement of electric power. If power requirement is within mW, use of few number of photovoltaic cells will be able to achieve this much power. But, if the requirement of power is in MW, then large number of cells are grouped together to form a solar panel. Then, large number of solar panels are connected in series and parallel to get the required electric power. Thus, it is possible to produce energy from mW to MW using solar photovoltaic cells.
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