Parallel resonant frequency of quartz crystal is given by:
A)1/ ?(lc?c/(c?+c))
B)1/?lc
C)1/?lc?
D)1/ ?(l(c?+c) )

Question

Quizplus · Accepted Answer

The parallel resonant frequency of a quartz crystal is given by the formula $f = \frac{1}{2\pi\sqrt{L\left(\frac{C_1C_2}{C_1+C_2}\right)}}$, where $L$ is the inductance, $C_1$ is the motional capacitance, and $C_2$ is the load capacitance. This formula simplifies to the form given in option A when considering $C_1$ and $C_2$ as $C$ and $C'$ respectively.

Parallel Resonant Frequency of Quartz Crystal Is Given By