Current Electricity - Result Question 93
98. A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves
[2017]
(a) Potential gradients
(b) A condition of no current flow through the galvanometer
(c) A combination of cells, galvanometer and resistances
(d) Cells
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Answer:
Correct Answer: 98. (b)
Solution:
- (b) Reading of potentiometer is accurate because during taking reading it does not draw any current from the circuit.
