Does capacitance change with frequency?

1 Answer
Arusa Ehmet
Mar 6, 2018

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#.

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