The equivalent circuit of a quartz crystal has LCR arm capacitance of 12nF and inductance of 3mH and parallel arm capacitance of 4nF. Parallel resonant frequency for the circuit is:
A)3 mhz
B)0.3 mhz
C)6 mhz
D)9 mhz

Question

Quizplus · Accepted Answer

The parallel resonant frequency (f_p) is given by the formula f_p = 1 / (2π√(L * C_total)), where C_total is the sum of the series and parallel capacitances. Here, C_total = 12nF + 4nF = 16nF. Plugging in the values, f_p = 1 / (2π√(3mH * 16nF)) ≈ 3 MHz.

The Equivalent Circuit of a Quartz Crystal Has LCR Arm