Question:medium

In a potentiometer experiment two cells of emf $E_{1}$ and $E_{2}$ are used in series and in conjunction and the balancing length is found to be $58~\mathrm{cm}$ of the wire. If the polarity of $E_{2}$ is reversed, then the balancing length becomes $29~\mathrm{cm}$. The ratio $\frac{E_1}{E_2}$ of the emfs of the two cells is}

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In a potentiometer, the balancing length is directly proportional to the emf.
Updated On: Apr 8, 2026
  • 1:1
  • 2:1
  • 3:1
  • 4:1
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The Correct Option is C

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