The metre bridge shown is in balance position with $\frac{P}{Q}=\frac{l_{1}}{l_{2}}$. If we now inte

Question

The metre bridge shown is in balance position with $\frac{P}{Q}=\frac{l_{1}}{l_{2}}$. If we now interchange the positions of\ galvanometer and cell, will the bridge work? If yes, what will be balanced condition?\

Professor PC Thomas Classes · Answer

(d) : Yes, the bridge will work. For a balanced condition, the current drawn from the battery will be zero. Also, $P \propto l_{1}$ and $Q \propto l_{2}$ Therefore, the condition $\frac{P}{Q}=\frac{l_{1}}{l_{2}}$ will remain same after interchanging the cell and galvanometer.\