Question

The balancing point in a meter bridge is 44 cm. If the resistances in the are gaps are inchanged the new balance point is

• A. 44 cm
• B. 56 cm
• C. 50 cm
• D. 22 cm

Answer 1

The correct option is B 56 cm

At balance position of meter bridge $=\frac{I}{\left(100-I\right)}$ $=\frac{R}{S}$

Where $I$ is the balancing length$.$

So$,$ if value of $R$ and $S$ are inter changed the new $I$ limit will be $100-44=56$

Hence,

option $\left(B\right)$ is correct answer.