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Potentiometer

A potentiomet...

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

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B

Cells

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C

Potential gradients

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D

A condition of no current flow through the galvanometer

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Solution

The correct option is D A condition of no current flow through the galvanometer
Potentiometer works on the principle of wheatstone bridge i.e no current flows through the galvanometer

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