Page 1 - Lesson Notes- Electric Cell
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SAI INTERNATIONAL SCHOOL

                                                        Class 6
                                                   Lesson Notes
                                                 Subject- Physics

                                          Ch. – Electricity and Circuits
                                             Subtopic- Electric cells



                       Types of electric cell:
                       Primary cell:
                             The chemical reaction that converts the chemical energy into electrical
                              energy is irreversible.
                             Primary cells cannot be charged again.
                             Primary cells cannot be reused once exhausted.
                             E.g. - dry cell
                             They are generally used in clocks, toys, flashlights and radio.

















                       Secondary cell:
                             The chemical reaction that converts the chemical energy into electrical
                              energy is reversible.
                             Secondary cells can be charged again.
                             It can be reused.
                             They are generally used in trucks, cars and motorcycles.



















                       Solar cell:
                             These cells use sunlight to generate electric current.
                             They are generally used in street lamps, solar cookers and heaters.
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