A) potential gradient
B) a condition of no current flow through the galvanometer
C) a combination of cells, galvanometer and resistances
D) cells
Correct Answer: B
Solution :
(b) a condition of no current flow through the galvanometer. A potentiometer is an accurate and versatile device to make electrical measurements of emf because the method involves a condition of no current flow through the galvanometer. It can be used to measure potential difference, internal resistance of a cell and compare emfs of two sources.
You need to login to perform this action.
You will be redirected in
3 sec
