The metre bridge shown is in balance position with $\frac{\mathrm{P}}{\mathrm{Q}}=\frac{{\mathrm{l}}_1}{{\mathrm{l}}_2}$ . If we now interchange the positions of galvanometer and cell, will
the bridge work? If yes, what will be balance condition?
 

 

• A

  $\text{ yes, }\frac{\mathrm{P}}{\overline{\mathrm{Q}}}=\frac{{\mathrm{I}}_1}{{\mathrm{I}}_2}$

• B

  $\mathrm{yes}, \begin{array}{r}\mathbf{P}{\left. \right|}_2-{\mathbf{I}}_1\\ \overline{\mathbf{Q}}\overline{2}+{\mathbf{I}}_1\end{array}$

• C

  no,no null point

• D

  $\text{ yes, }\frac{\mathrm{P}}{\mathrm{Q}}=\frac{{\mathrm{I}}_2}{{\mathrm{\Gamma }}_1}$