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Question 31670
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Current Electricity: Cell Combination for Maximum Current MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Cell Combination for Maximum CurrentHardQuestion 31670

Question

For n identical cells (EMF E, internal resistance r) to deliver maximum current to resistance R = r/n, they should be:
  1. A
    All in series
  2. B
    All in parallel
    Correct
  3. C
    In mixed grouping: n in parallel (m=1)
  4. D
    In mixed grouping with m rows

Correct answer

All in parallel

Explanation

When R = r/n, all cells in parallel gives r_int = r/n = R. Maximum power transfer condition is met. All in parallel maximises current for this specific load.

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