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The length of a potentimeter wire is 10c...

The length of a potentimeter wire is 10cm . A cell of emf E is balanced at a lenth `(10)/(3)` cm from the positive end of the wire .If the length of the wire is increased by 5 cm , at what distance (in cm ) from positive end will the same cell give a balance point ?

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Knowledge Check

  • A uniform wire of length L and weight W is rigidly fixed at one end and a load W_1 is applied at its othe end. IF the area of cross section of the wire is S, then stress developed In the wire at a distance (3L)/4 from its lower end will be (assume that increase in length of the wire is very small)

    A
    `W_1/S`
    B
    `(((3W)/4))/S`
    C
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    D
    `((W_1+(W)/4))/S`

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