Question
A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F, because the method involves :
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Cells
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Potential gradients
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A condition of no current flow through the galvanometer
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A combination of cells, galvanometer and resistances
Solution
C.
A condition of no current flow through the galvanometer
Reading of potentiometer is accurate because during taking reading it does not draw any current from the circuit.
