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Electricity2

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Published in: Physics
5,304 Views

How electricity can be converted into other forms of energy

Elizabeth C / Kochi

13 years of teaching experience

Qualification: M.Sc. & B.Ed.

Teaches: Physics, Chemistry

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  1. ?:jfELCOME I
  2. DIFFERENT SOURCES OF ELECRICAL ENERGY
  3. CHEMICAC RGY CHEMICAL REACTIONS ARE TAKING PLACE TO PRODUCE ELECTRICITY Eg :drycell Primary cells -can use only once Secondary cells - can be used many times by recharging it Eg- lead acid cell (used in cars and vehicles) lithium cells (used in cameras and mobiles)
  4. ELECTRICITY GENERATOR Rotating Shaft Rotating Coil Generating Current Magnet
  5. N/A
  6. HYDRO ELECTRIC POWER Potential energy of stored water is converted into electricity Water HOW Dam Power Generetor Water Flow Reservoir Turbine Electricity
  7. energy Thermal power plants Coal supp*y Conveyor Boiler Pulvetiset/Mtti Stack EjccUictty Steam tugbino Generator StJbsta60n/ transformer Condenser Ash systems Water purification
  8. NUclear energy Nuclear power plants Heat energy produced during nuclear reaction is used to produce steam and to rotate the turbine to produce electricity
  9. Wind energy Kinetic energy of wind is converted into electricity
  10. N/A
  11. Tidal energy energy) Kinetic energy of tides is converted into electricity
  12. SOLAR CELLS Solar (or photovoltaic) cells convert the sun's energy into electricity. Eg solar cells are used in calculators and watches
  13. Conventional energy sources or non renewable energy sources Energy sources that get exhausted as we use it are called conventional energy sources Eg Coal, petrol
  14. 1.8 ADVANTAGES AND DISADVANTAGES OF CONYENTIONAL ENERGY SOURCES Fossil fuels, nuclear and hydro resources are considered as conventional sources. Their use has the following advantages and disadvantages. Advantages: 1. Cost At present, these are cheaper than non-conventional sources. 2. Security As storage is easy. and convenient, by storing a certain quantity, the encrw availability can be ensured for certain period. 3. Convenience These sources are very convenient to use as technology for their conversion and their use is universally available.
  15. Disadvantages of conve ional energy SOL] r CeS Gets exhausted pollustion
  16. RENEWAB' SOURCES ENERGY SOURCES WHICH DO NOT GET EXHAUSTED AS WE USE IT EG SOLAR ENERGY, WIND ENERGY
  17. Advantages and disadvantages of non-conventional ener sources Advantages • i. Available in nature • ii. Free of cost • iii. Inexhaustible • iv. Little pollution v. Low gestation period Disadvantages • i. High cost of harnessing energy • ii. Uncertainty of availability iii. Difficulty in transporting
  18. 1M ORTANCE OF R -VVABL€ ENERGY SOURCES WE CAN PRESERVE THE ENERGY SOURCES FOR FUTURE GENERATION HELP US IN SUSTAINED USE OF EXHAUSTIBLE ENERGY SOURCES
  19. What are the different sources of electric energy? What is the difference between primary cell and secondary cell? Give one use of solar cell What are renewable energy sources? eg What are the advantages of renewable energy source? What are the disadvantages of renewable energy source?
  20. What are non renewable energy sources? Eg What are the advantages of non renewable energy source? What are the disadvantage of non renewable energy source? Why should we rely more on renewable energy source?
  21. Thank you! ! !

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