DIELECTRICS 1- What is the capacitance of a pair of circular plates with a radius of 5 cm separated by 2.8 mm of Mica? * 2- A 3500 pF air-gap capacitor is connected to a 32 V battery. If a piece of mica is placed between the plates, how much charge will flow from the battery? * DIELECTRICS ENERGY STORAGE 5_ How much energy is store by the electric field between two squares plates, 8 cm on a side, separated by a 1.5 mm air gap? the charges on the plates are equal and opposite and of magnitude 370 uC. *