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Twenty four cells each of emf 1.5V and internal resistance 0.5 ohms are to be connected to a 3 ohm resistance. For maximum current through this resistance the number of rows and number of columns that you connect these cells is.

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12 cells in series 2 rows in parallel

8 cells in series 3 rows in parallel

4 cells in series 6 rows in parallel

6 cells in series 4 rows in parallel

answer is A.

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Detailed Solution

$i = \frac{mnE}{mR + nr} & m \times n = 24$

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