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Question

To get maximum current in a resistance of 3Ω one can use n rows of m cells connected in parallel. If the total no. of cells is 24 and the internal resistance of a cell is0.5Ω then
  1. m = 12, n = 2
  2. m = 8, n = 4
  3. m = 2, n = 12
  4. m = 6, n = 4


Solution

The correct option is A m = 12, n = 2
In this question R=3Ω,mn=24,r=0.5Ω and R=mrn. On putting the values we get n = 2 and m = 12.

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