If in the experiment of Wheatstone's bridge, the positions of cells and galvanometer are interchanged, then balance point will

Options

A. change
B. remain unchanged
C. depends upon internal resistance of cell
D. none of the above

Answer

B

Explanation

`(P)/(Q)=(R)/(S)` it may be written as `(P)/(R)=(Q)/(S)`, thus, by interchanging the two (cell and galvanometer) balance point will remain unchanged.