Current Electricity

Question: 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

1) $3:5$

2) $5:3$

3) $3:4$

4) $4:3$

Solution:

Explanation: No Explanation

Different Measuring Instruments Potentiometer Meter Bridge

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