Question: A parallel plate capacitor has a cross-sectional area A = 2 cm2 and a distance between the plates d = 5 mm. The capacitor is

A parallel plate capacitor has a cross-sectional area A = 2 cm2 and a distance between the plates d = 5 mm. The capacitor is then connected to a 10 Volt battery. After loading the capacitor is fully charged, the connection with the battery is disconnected, then it goes wrong One plate of the capacitor is pulled so that the distance between the plates is 2d. What is the ratio of the magnitude of: (i) charge; (ii) capacitance (C); (iii) potential difference (V); (iv) electric field (E); and (v) stored energy in the capacitor (U) before and after the distance between the plates is increased?

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