Question:

12. In a parallel plate capacitor with air between the plates, each plate has an area of 6 × 10 m² and the separation between the plates is 2 mm. a) Calculate the capacitance of the capacitor, b) If this capacitor is connected to 100 V supply, what would be the charge on each plate? c) How would charge on the plates be affected if a 2 mm thick mica sheet of k=6 is inserted between the plates while the voltage supply remains connected?