Question

In the adjoining figure, the potential difference between X and Y is $60V$. The potential difference between the points M and V will be:

• A. $10V$
• B. $15V$
• C. $20V$
• D. $30V$

Answer 1

Answer: (D)

$30V$

In series combination potential divides in inverse ration of capacity

$V_1:V_2:V_3$= $\frac{1}{2C}$ :$\frac{1}{C}$ :$\frac{1}{2C}$
$V_1:V_2:V_3$= $\frac{1}{2}$ :$\frac{1}{1}$ :$\frac{1}{2}$
$V_1:V_2:V_3$= $1:2:1$
$V_2=\frac{2}{4}\times 60=30V$