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Question: Answered & Verified by Expert
A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F, because the method involves:
PhysicsCurrent ElectricityNEETNEET 2017
Options:
  • A Cells
  • B Potential gradients
  • C A condition of no current flow through the galvanometer
  • D A combination of cells, galvanometer and resistances
Solution:
2895 Upvotes Verified Answer
The correct answer is: A condition of no current flow through the galvanometer
Reading of potentiometer is accurate because it doesn't draw any current from the circuit while measuring the voltages.

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