MCQ
In the circuit shown, a potential difference of $60\,V$ is applied across $AB$. The potential difference between the point $M$ and $N$ is.....$V$
  • A
    $10$ 
  • B
    $15$ 
  • C
    $20$
  • $30$ 

Answer

Correct option: D.
$30$ 
d
In series combination potential divides in inverse ration of capacity

$V_{1}: V_{2}: V_{3}=\frac{1}{2 C}: \frac{1}{C}: \frac{1}{2 C}$

$V_{1}: V_{2}: V_{3}=\frac{1}{2}: \frac{1}{2}: \frac{1}{2}$

$V_{1}: V_{2}: V_{3} \equiv 1: 2: 1$

$V_{2}=\frac{2}{4} \times 60 V=30 V$

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