JEE Main 2022 Physics question

The combination of two identical cells, whether connected in series or parallel combination provides the same current through an external resistance of 2 . The value of internal resistance of each cell is

(1)2 Correct
(2)4
(3)6
(4)8

Answer: (1)

Solution

For two identical cells (emf E, internal resistance r) the current in parallel is = E/(2 + r/2) and in

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Question ID VK-035184