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प्रश्न
Give scientific reasons.
The construction of turbine is different for different types of power plants.
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उत्तर
- Generators produce electricity on the principle of electromagnetic induction and therefore require continuous rotation.
- This rotation is provided by turbines. Different power plants use different energy sources, such as steam, flowing water, wind, or gas, to rotate the turbines.
- Since the nature, pressure, speed, and flow of these energy sources are different, the turbines must be specially designed to operate efficiently with each source.
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संबंधित प्रश्न
Name the moderator used in a nuclear reactor.
Fill in the following blank with suitable word:
Nuclear .......... is used in nuclear power stations for the production of electricity.
Fill in the following blank with suitable word:
In a nuclear power station, nuclear fission takes place in the .............
In the reactor of a nuclear power plant, name the material which is used:
(a) as a moderator
(b) to absorb radiations
(c) in the fuel rods
(d) in the control rods
(e) to carry away heat
What are the advantages and disadvantages of using nuclear fuel for generating electricity?
Name five places in India where nuclear power plants are located.
Which of the two, nuclear fusion and nuclear fusion, is made use of:
(1) for the production of electricity?
(2) for making a hydrogen bomb?
Calculate the energy released in joules when 5 g of a material is completely converted into energy doing a nuclear reaction.
One MeV of nuclear energy is equivalent to:
(a) 1.6 × 10−13 J
(b) 1.6 × 10−19 J
(c) 1.6 × 10−16 J
(d) 1.6 × 10−15 J
The disposal of waves produced in a nuclear power plant poses a big problem because it is:
(a) too heavy
(b) highly inflammable
(c) extremely foul smelling
(d) highly radioactive
A nuclear reaction is represented by the equation:
`""_1^2H+_1^2H->_2^3He+xc+E`
What does E represent?
What changes will take place in the mass number and atomic number of the nucleus Y if it emits gamma radiations?
What changes occur in the nucleus of a radioactive element when it emits an alpha particle? Show by an example?
What will an alpha particle change into when it absorb two electrons.
How does the position of an element change in the periodic table when it emits out a beta particle?
A nucleus of an element has the symbol 84P202, and emits an α-particle and then a β-particle. The final nucleus is bQa Find a and b.
How many alpha and beta particles are emitted when the uranium nucleus 92U238 decays to Lead If 82Pb206?
An isotope of uranium is 92Y238, i.e., it has mass number 235 and atomic number 92.
Find the number of protons and neutrons in its nucleus.
Give scientific reason.
It is absolutely necessary to control the fission reaction in nuclear power plants.
