Does the capacitance of a device depend on the applied voltage? What about the charge stored in it?

Question

anonymous · Answer

No and yes, respectively.  The capacitance is an intrinsic property of the device.  On the other hand, the stored charge is proportional to the voltage applied $ \left( Q = C\cdot V\right) $.

anonymous · Answer

Can you quickly explain capacitance?

anonymous · Answer

It's defined through the charge equation Q = CV.  One way to think about it is that in SI units, a capacitor with a 2 Farad capacitance will store 2 Coulombs of charge for every volt applied across the device.

anonymous · Answer

Okay Thanks so much!! I get it now

anonymous · Answer

No problem.