In the series combination of n cells each having emf 
and internal resistance r. If three cells are wrongly connected, then total emf and internal resistance of this combination will be:
A
B
( 
), nr
), nr
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Since due to wrong connection of each cell, the total emf is reduced by 
, so then for wrong connection of three cells the total emf will be reduced to ( 
) whereas the total or equivalent internal resistance of the cell combination will be nr.
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