PHYSICS  CLASS-12  CBSE/ICSE/BSEB(BIHAR BOARD)/IB BOARD/IIT-JEE/NEET  LECTURE-17  CHAPTER : CURRENT ELECTRICITY  GROUPING OF CELLS IN SERIES/PARALLEL/MIXED                                                 OR  COMBINATION OF CELLS IN SERIES/ PARALLEL / MIXED :  COMPLETE SYLLABUS FOR CLASS-12 :  Grouping of cells:  1.Definition  2. Need of grouping  3.Kinds of grouping  Grouping of cells in series:  1. Definition  2.Need of grouping of cells in series  3.Circuit diagram  4.Equivalent emf  5.Equivalent/ total resistance of the circuit  6.Derivation of an expression for current  7.Uses of grouping of cells in series  8.Special cases  9. Condition for usefulness  Grouping of cells in parallel :  1. Definition  2.Need of grouping of cells in parallel  3.Circuit...
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