Question

Does capacitance change with frequency?

Answer 1

No, Capacitance does not change with frequency.

Explanation:

Capacitance of a capacitor is given as:
`C=Q/V`
It is simply the charge stored on the plates of a capacitor per unit voltage.

however, if you talk about the Capacitive Reactance `X_c` of a circuit, it indeed depends upon the frequency.

Capacitive reactance is given as:
`X_c = 1/(2pifC)`

Thus, it is the `Capacitive` `Reactance` and `NOT` the `Capacitance` which depends upon `Frequency`.