Consider a parallel plate capacitor. each plate is rectangular and of dimensions 3 mm by 5 mm. a vacuum exists between the plates of the capacitor. (a) if the charge on a plate is 5.2x105 c and the voltage measured across the capacitor plates is 3 v. (i) what is the capacitance of the capacitor? (ii) what is the distance between the plates? (ii) what is the energy stored in the capacitor? (b) if the capacitor used in part a is used in a circuit where the current varies as i(t) 2.1cos 200t ma difference across the capacitor as a function of time? (ii) what is the energy stored in the capacitor as a function of time? 4. and the capacitor is uncharged at i) what is the potential difference across the capacitor as a function of time? (ii) what is the energy stored in the capacitor as a function of time.