In a potentiometer experiment two cells of e.m.f. E and E are used in series and in conjunction and the balancing length is foun

In a potentiometer experiment two cells of e.m.f. E and E are used in series and in conjunction and the balancing length is found to be 58 cm of the wire. If the olarity of E is reversed, then the balancing length becomes 29 cm . The ratio `(E_(1))/(E_(2))` of the e.m.f. of the two cells is
A. `1:1`
B. `2:1`
C. `3:1`
D. `4:1`

In a potentiometer experiment two cells of e.m.f. E and E are used in series and in conjunction and the balancing length is found to be 58 cm of the w

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