NEET Solved Paper 2017 Question 24
Question: A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F, because the method involves:
Options:
A) A combination of cells, galvanometer and resistances
B) Cells
C) Potential gradients
D) A condition of no current flow through the galvanometer
Show Answer
Answer:
Correct Answer: D
Solution:
- Reading of potentiometer is accurate because during taking reading it does not draw any current from the circuit.
BETA
