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A parallel plate capacitor is filled by ...

A parallel plate capacitor is filled by a di-electric whose relative permittively varies with the applied voltage according to the law `=alpha V`, where `alpha = 1` per volt. The same (but contiaining no di-electirc) capacitor charged to a voltage `V = 156` volt is connected in parallel to the first ''non-linear'' uncharged capacitor. Determine the final voltage `V_(f)` across the capacitors.

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