A potentiometer arrangement is shown in fig. The driver cell has emf e – McqOptions

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1.	A potentiometer arrangement is shown in fig. The driver cell has emf e and internal resistance r. The resistance of potentiometer wire AB is R. F is the cell of em e/3 and internal resistance r/3. Balance point (J) can be obtained for all finite values of
A.	R>r/2
B.	R<r/2
C.	R>r/3
D.	R<r/3
Answer» B. R<r/2

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