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  4. In the circuit shown, a potential difference of 60V is applied across AB . The potential difference between the points M and N is <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-nbemwcf4nogm.png />

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Q. In the circuit shown, a potential difference of $60V$ is applied across $AB$ . The potential difference between the points $M$ and $N$ is

Question

NTA AbhyasNTA Abhyas 2020Electrostatic Potential and Capacitance

Solution:

Equivalent capacitor in circuit $A'MNB'$ is $\frac{C}{2}$
Charge on capacitor $C$ between $MN$ is $60\times \frac{C}{2}=30 \, C$
Solution
$\therefore V_{MN}=\frac{30 C}{C}=30V$