In a meter bridge (Figure), the null point is found at a distance of $33.7 \;cm$ from A. If now a reststance of $12\; \Omega$ is connected in parallel with $S$, the null potnt occurs at $51.9 \;cm$. Determine the values of $R$ and $S$.

A resistance wire connected in the left gap of a meter bridge balances a $10\, \Omega$ resistance in the right gap at a point which divides the bridge wire in the ratio $3: 2 .$ If the length of the resistance wire is $1.5 m ,$ then the length of $1\, \Omega$ of the resistance wire is $……. \times 10^{-2}\;m$

The meter bridge shown is in balanced position with $\frac{\mathrm{P}}{\mathrm{Q}}=\frac{\mathrm{l}_{1}}{\mathrm{l}_{2}}$. If we now litterchange the positions of gavanometer and cell, will the bridge work? If yes, what will be balance condition?

Explain construction of meter bridge used in laboratory.

If the balance point is obtained at the $35^{th} cm$ in a meter bridge the resistances in the left and right gaps are in the ratio of