Question

8. The length of a potentiometer wire is 300 cm. For a given cell, the null point is obtained at 80 cm. What will be the length of wire required for balancing the cell, if the length of the same wire is made 600 cm? (A) 120 cm (B) 240 cm (C) 124 cm (D) 160 cm
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Answer 1

Answer:

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