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What happens to the capacitance of a par...

What happens to the capacitance of a parallel plate capacitor if the area of its plates is doubled ?

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`(C_2)/9C_1)=(A_2)/(A_1)[therefore C=(epsi_0A)/(d)]`
Given `A_2=2A_1,(C_2)/(C_1)=(2A_1)/(A_1)[because C_2=2C_1]`
Therefore capacity increases by twice.
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