n equal cell having e.m.f. E and internal resistance r, are connected in circuit of a resistance R. Same current flows in circuit either they connected in series or parallel, if:
A
R = nr
B
R = 
C
R = n 2 r
D
R = r
Text Solution
Verified by ExpertsThe correct answer is:
D
Current when cells are connected in series
in parallel 
According to question 
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