Current in the capacitor increases as the frequency of the generator increases
Explanation:
Xc = 1/2πfC = 1/ wC
Since frequency is inversely proportional to reactance of a capacitor,
as the frequency increases, the capacitance decreases and tend towards behaving like a wire with zero resistance as such the generator send high current to the capacitor, the current in the capacitor increases.
You need two, maybe three things - something that's vibrating, a medium for those vibrations to propagate in, and a listener to hear it or recording equipment to pick it up
