# On interchanging the resistances, the balance point of a meter bridge shifts to the left by

Question:

On interchanging the resistances, the balance point of a meter bridge shifts to the left by $10 \mathrm{~cm}$. The resistance of their series combination is $1 \mathrm{k} \Omega$. How much was the resistance on the left slot before interchanging the resistances ?

1.  $505 \mathrm{k} \Omega$

2.  $550 \mathrm{k} \Omega$

3. $910 \mathrm{k} \Omega$

4. $990 \mathrm{k} \Omega$

Correct Option: , 2

Solution: