current electricity

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Blazing goIITian

total posts: 467
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let dere be a total of n cells....................

2 cells have emf in opp directiond remaining n-2 have in another direction..........ok.

total current thru the circuit will be...........total v/ total r

total r in series combination of cells will be nr....

total V =( n-2)E - nE..

total current is {(n-2)E - nE}/ nr

now as such the net potential difference across the terminals of any cell is E- ir..

but in dis case more no of cells have dere emf in opp dir as compared to the direction of of emf of cell A or B.....

dat means the cell is getting charged up..........

so V= E+ir

therefore V=2E(1- 2/n)...............

good luck

rate if useful.........

Dont walk as if u rule the world....... walk as if u dont care who rules the world!!!!!!!!

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