27.
Which of the following statements is false?
A:
Wheatstone bridge is the most sensitive when all the four resistances are of the same order of magnitude.
B:
In a balanced wheat stone bridge if the cell and the galvanometer are exchanged, the null point is disturbed.
C:
A rheostat can be used as a potential divider.
D:
Kirchhoff’s second law represents energy conservation.
The answer is:
B