The plates $S$ and $T$ of an uncharged parallel plate capacitor are connected across a battery. The battery is then disconnected and the charged plates are now connected in a system as shown in the figure. The system shown is in equilibrium. All the strings are insulating and massless. The magnitude of charge on one of the capacitor plates is: [Area of plates = $A$]
The plates $S$ and $T$ of an uncharged parallel plate capacitor are connected across a battery. The battery is then disconnected and the charged plates are now connected in a system as shown in the figure. The system shown is in equilibrium. All the strings are insulating and massless. The magnitude of charge on one of the capacitor plates is: [Area of plates = $A$]
- A
$\sqrt {2mgA{ \in _0}} $
- B
$\sqrt {\frac{{4mgA{ \in _0}}}{k}} $
- C
$\sqrt {mgA{ \in _0}} $
- D
$\sqrt {\frac{{2mgA{ \in _0}}}{k}} $
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