The current does not flow in between the plates of the capacitor. The charge stored on the plates of the capacitor is directly proportional to the applied voltage so 1 V α Q. Capacitance And Charge On A Capacitors Plates Thus AC capacitance is a measure of the capacity a capacitor has for storing electric charge when connected to a sinusoidal AC supply. . In general a capacitor and thus capacitance is present when any two conducting surfaces are separated by a distance. The diaphragm acts as one plate of a capacitor and audio vibrations produce changes in the distance between the platesBecause the capacitance of the plates is inversely. When the two plates of a capacitor are connected to a voltage source as shown charges are displaced from one side of the capacitor to the other side thereby establishing an electric field. Our global writing staff includes experienced ENL ESL academic writers in a variety of disciplines. Ca