Current Electricity and Electrical InstrumentHard

Question

A battery consists of a variable number n of identical cells having internal resistance connected in series. The terminals of the battery are short circuited and the current I measured. Which one of the graph below shows the correct relationship between I and n ?

Options

A.
B.
C.
D.

Solution

If n batteries are in series than the circuit can be made as
i = i.e. independent of n.

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