Two identical cells of the same e.m.f. and same internal resistance

Two identical cells of the same e.m.f. and same internal resistance give the same current through an external resistance of 2 Ω, regardless of whether they are connected in series or in parallel. The internal resistance of the cell is

Options

(a) 0.5 Ω
(b) 1 Ω
(c) 2 Ω
(d) 5Ω

Correct Answer:

1 Ω

Explanation:

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