Question

10. Two cells when connected in series are balanced on 8m on a potentiometer. If the cells are
connected with polarities of one of the cell is reversed, they balance on 2m. The ratio of
e.m.f.'s of the two cells is (a) 3:4 (b) 4:3 (c) 3:5 (d) 5:3
1
1
11
C​

Answer 1

the answer is .3:4 as the polarities has been reversed