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In the given figure a capacitor of plate...

In the given figure a capacitor of plate area A is charged upto charge q. The mass of each plate is m, The lower plate is rigidly fixed. The value of m, if the system remains in equilibrium is

A

`m_2 +(q^2)/( in_0 Ag)`

B

`m_2`

C

`2m_(2)`

D

`(q^2)/(2 in_0 Ag )+m_2`

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The correct Answer is:
D
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