Solve
Guides
0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Standard XII
Physics
Potentiometer
Question

A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves:
  1. Cells
  2. A combination of cells, galvanometer and resistances
  3. Potential gradients
  4. A condition of no current flow through the galvanometer

A
A combination of cells, galvanometer and resistances
B
Potential gradients
C
Cells
D
A condition of no current flow through the galvanometer
Open in App
Solution
Verified by Toppr

Potentiometer works on the principle of wheatstone bridge i.e no current flows through the galvanometer

Was this answer helpful?
0
Similar Questions
Q1
A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves:
View Solution
Q2
A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F, because the method involves
View Solution
Q3
The potentiometer wire of length 100cm and resistance 9Ω is joined to a cell of e.m.f 10V and internal resistance 1Ω. Another cell of e.m.f 5V and internal resistance 2Ω is connected and shown in Fig. The galvanometer G shows no deflection when the length AC is
768271_0e7eaad0da464125ac4c50aa24974f3a.png
View Solution
Q4
Figure shows a potentiometer arrangement. D is driving cell and C is the cell whose EMF is to be determined. AB is the potentiometer wire and G is galvanometer. J is jockey, then for balance condition of galvonometer

View Solution
Q5
In the fig. the potentiometer wire AB of length L & resistance 9 r is joined to the cell D of e.m.f. ε and internal resistance r. The cell Cs e.m.f. is ε/2 and its internal resistance is 2 r. The galvanometer G will show no deflection then find length AJ:
1021093_ef41eb13140a4980a477c16f25f04a7e.png
View Solution