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A parallel plate capacitor is filled by ...

A parallel plate capacitor is filled by a dielectric whose relative permittivity varies with the applied voltage (V) as `epsilon = alpha V` where `alpha = 2V^-1`. A similar capacitor with no dielectric is charged to `V_0 = 78 V`. It is then concentrated to the uncharged capacitor with the dielectric. Find the final voltage on the capacitors.

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