Two cells when connected in series are balanced on 8m on a potentiometer.

Two cells when connected in series are balanced on 8m on a potentiometer. If the cells are connected with polarities of one of the cells is reversed, then they balance on 2m. The ratio of emfs of two cells is

Options

(a) (3:4)
(b) (4:3)
(c) (3:5)
(d) (5:3)

Correct Answer:

(5:3)

Explanation:

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