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| 1. |
A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves :-(1) Potential gradients(2) A condition of no current flow through the galvanometer(3) A combination of cells, galvanometer and resistances(4) Cells |
| Answer» (2) Reading of potentiometer is accurate because during taking reading it does not draw any current from the circuit. | |