A resistance $R$ is connected to ' $n$ ' identical cells. If the current in the resistance is same whether…

A resistance $R$ is connected to ' $n$ ' identical cells. If the current in the resistance is same whether the cells are connected either in series or in parallel, then the internal resistance (r) of each cell is
  1. $r=\frac{R}{n}$
  2. $r=n R$
  3. $r=R$
  4. $r=\frac{1}{R}$

Solution

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Asked in: AP EAMCET 2017 (25 Apr Shift 1)

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