Which of the following statements is false ?

Options

A. Wheatstone bridge is the most sensitive when all the four resistances are of the same order of magnitude .
B. In a balanced wheatstone 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 .

Answer

B

Explanation

If the positions of the cell and the galvanometer are exchanged in a wheatstone bridge , the null condition remains unchanged .