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KCET 2014 Physics Solved Paper

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Question : 46

Total: 60

In a potentiometer experiment of a cell of emf 1.25 V gives balancing length of 30 cm. If the cell is replaced by another cell, balancing length is found to be 40 cm. What is the emf of second cell ?

≃ 1.57 V
≃ 1.67 V
≃ 1.47 V
≃ 1.37 V

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