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Questions  >>  CBSE XII  >>  Physics  >>  Current Electricity
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In a potentiometer arrangement, a cell of emt $1.25\;V$ gives a balance point at $35. 0\;cm$ length of the wire. If the cell is replaced by another cell and the balance point shifts $63.0\;cm$, What is the emf of the second cell ?

$\begin{array}{1 1} \text{a. 2V} \\ \text{b. 2.2 V} \\ \text{c. 2.25 V} \\ \text{d. 2.5 V} \end{array}$

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