You have a 30-µH inductor and a 50-µF capacitor with which you form a parallel,resonant circuit.The frequency of this circuit will be
A)4.11 kHz
B)13.7 kHz
C)25.8 kHz
D)31.7 kHz
E)39.1 kHz

Question

Quizplus · Accepted Answer

The resonant frequency of a parallel LC circuit is given by:$$f_r = \frac{1}{2\pi\sqrt{LC}}$$Substituting the given values:$$f_r = \frac{1}{2\pi\sqrt{(30\mu H)(50\mu F)}}$$$$f_r = 4.11 kHz$$

You Have a 30-µH Inductor and a 50-µF Capacitor with Which