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The n rows each containing m cells in series are joined in parallel. Maximum current is taken from this combination across anexternal resistance of `3Omega` resistance. If the total number pf cell used are 24 and internal resistance of each cell is `0.5Omega`, then

A

m = 8, n = 3

B

m = 6, n = 4

C

m = 12, n = 2

D

m = 2, n = 12

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The correct Answer is:
C
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