b. An air-filled (k = 1.00) ideal parallel plate capacitor has a plate separation of 2.00 mm and a plate area of 60.0 cm. The plates of the capacitor are charged to a potential difference of 85.0 V (figure a). Dielectric D AV Calculate: (i) the capacitance D AV (ii) the charge stored on its plates (iii) the energy stored for this capacitor 2mm to make The capacitor is first disconnected from the power supply and then a dielectric material is inserted completely between the two plates (figure b). If the potential difference is now 25.0 V, calculate: (iv) the dielectric constant (v) the new capacitance (vi) the energy stored for this capacitor