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    A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F, because the method involves:
    Question

    A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F, because the method involves:

    A.

    A combination of cells, galvanometer and resistances

    B.

    Cells

    C.

    Potential gradients

    D.

    A condition of no current flow through the Galvanometer

    Correct option is D

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