Electronics - RLC Circuits and Resonance - Discussion

Discussion Forum : RLC Circuits and Resonance - General Questions (Q.No. 11)
11.

What is the resonant frequency in the given circuit?

11.6 Hz
275.8 Hz
1.5 kHz
3.2 kHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
21 comments Page 2 of 3.

Lakshmi said:   10 years ago
Fo = 1/2*LC"R^2/L^2.

In this circuit we must use this formula right?

Jeewan said:   1 decade ago
What is the significance of Rw?

Hussain said:   1 decade ago
Please provide the explanation
Fr = 1/(2*pi*sqrt(L*C));
L = 75mH C = 0.033 UF on substituting these values in above formula Fr = 0.101 KHz.

where i went wrong?

Nilesh said:   1 decade ago
@Hussain said is right because after calculation it comes 0.101khz not 3.2khz

Check out calculation correctly

Fr = 1/(2*pi*sqrt(L*C));
L = 75mH C = 0.033 UF on substituting these values in above formula Fr = 0.101 KHz.

Weldeabreha beyene said:   1 decade ago
@Guru.
Let me explain, it is because resonance does not bother whether, series or parallel, simply (C&L).

Guru said:   1 decade ago
It is parallel resonance circuit then why you are applying series resonance formula please. Explain me.

Monica said:   1 decade ago
@Manikanta
Here Rw is nothing resistance but it is simply given its not of use

Resonant Frequency=1/(2*pi*sqrt(L*C))
=1/(2*pi*qrt(75*10^-3*0.033*10^-6))
= 31.99
=3.2khz

Manikanta said:   1 decade ago
Here what is Rw?

Yogesh said:   1 decade ago
@Hussain

you insert 1000 for inducter and (e-6) for capacitor Milli and you value.

Razif said:   1 decade ago
F = 1/(2*pi*sqrt(L*C)) = 1/(2*pi*4.98*10^-5) = 3.2 kHz


Post your comments here:

Your comments will be displayed after verification.