Question
For a cell terminal potential difference is 3.5 V when
circuit is open and reduces to 2.5 V when cell is connected to a resistance of R = 10Ω then determine internal resistance of cell isSolution
2.5 = (3.5 × 10)/(10 + r) r = 4 Ω
If the difference of two numbers is greater than the sum of the numbers, then
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