Current Electricity and Electrical InstrumentMedium
Question
N sources of current with different emf′s are connected as shown in figure. The emf′s of the sources are proportional to their internal resistances, i.e. E = αR, where a is an assigned constant. The connecting wire resistance is negligible. The potential difference between points A and B dividing the circuit in n and N − n links
Options
A.0
B.nE/2
C.NE
D.(N - n)E
Solution
i =
= 
i = α . so that potential difference between any two points is zero
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