Question

20 Alkaline secondary cells,each of discharge capacity of 60Ah at 10 hour rate,are to be charged at a constant current for 9 hours.Calculate the minimum and maximum values of the charging resistance required if the d.c supply is 120V and the Ah efficiency of the cell is 80%.The emf of each cell at start and end of charge is 1.3V and 1.7V respectively.

Answer 1

Answer:

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