Mathematics · Current Electricity Formulae
In a potentiometer experiment, the balancing length with a cell is 120 cm. When the cell is shunted by a 1 Ω resistance, the balancing length becomes 40 cm. The internal resistance of the cell is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 110 Ω
- 27 Ω
- 33 Ω
- 42 Ω✓
Correct answer
2 Ω
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