What is the relationship between the series and parallel resonant frequencies of a quartz crystal?

Series resonant frequency is approximately 1 kHz higher than parallel resonant frequency.

Parallel resonant frequency is approximately 1 kHz higher than series resonant frequency.

What is the relationship between the series and parallel resonant freq

1.	What is the relationship between the series and parallel resonant frequencies of a quartz crystal?
A.	They are equal.
B.	Parallel resonant frequency is approximately 1 kHz higher than series resonant frequency.
C.	Series resonant frequency is approximately 1 kHz higher than parallel resonant frequency.
D.	none of the above
Answer» C. Series resonant frequency is approximately 1 kHz higher than parallel resonant frequency.