help with Resonance circuit

Discussion in 'Homework Help' started by ronybhai, Sep 22, 2012.

Sep 18, 2012
97
0
Can a resonance circuit serve as a filter? How?
I know it does but don't know much description, if someone can describe it in simple words...thanks

2. WBahn Moderator

Mar 31, 2012
17,433
4,694
Why don't you go back and at least attempt to answer some of the clarifying questions that have been asked of you in prior threads you've started where you are just asking someone to provide an answer to your homework questions?

Apr 5, 2008
15,517
2,298

Sep 18, 2012
97
0

Apr 5, 2008
15,517
2,298
6. JoeJester AAC Fanatic!

Apr 26, 2005
3,311
1,107

The answer to that question should have guided you to answer your current question. You have been provided with another reference to read.

If your interested in just the answers, google "electronics tutoring" and you will be provided with a list of fee based tutoring services.

Sep 18, 2012
97
0
I wanted the answer in simple words, so I could have understand it better...Short and simple

Apr 5, 2008
15,517
2,298
Hello,

We are not an answering service.
You will have to show us what you have done.
That way we can see if you are understanding the theory.

Bertus

Sep 18, 2012
97
0
oo..sorry I didnt mean that...I was just trying to get help with the Resonance circuit.
I had lesson abt the high pass and low pass filter. And I wanted to find out Resonance is related to filter
I learned about filters can be passive and active on my class. Active filters are better because it works as amplifier also

10. WBahn Moderator

Mar 31, 2012
17,433
4,694
Then why don't you give us YOUR present understanding, however flawed it may or may not be, so that we can address your specific issues.

Sep 18, 2012
97
0
I was jsut trying to get help to understand better...like on my previous questions...I asked here,,,I received lot of responses and which helped me to understand the topic better...

Sep 18, 2012
97
0
This is what I know on Resonance.
At Series Resonance, XL=XC, ZT=R
Resonance occurs at a specific frequency f0= 1/2π√ (LC)
At resonance frequency circuit shows filtering effects.

Apr 5, 2008
15,517
2,298
Hello,

Did you read the chapter of the eBook I gave you.
There is all about resonance and filtering and the influence of the Q factor in there.

Bertus

14. WBahn Moderator

Mar 31, 2012
17,433
4,694
Q1) What is the equation for the capacitive reactance as a function of frequency?

Q2) What is the equation for the inductive reactance as a function of frequency?

Q3) At what frequency will the magnitude of the capacitive and inductive reactances be equal? This is the resonant frequency.

Q4) In a series R, L, C circuit, how do the resistance and the two reactances add?

Q5) What does this reduce to at the resonant frequency?

Sep 18, 2012
97
0
1. XC=1/2pifc
2. XL=2pifL
3. when f0= 1/2π√ (LC)
4. ZT=√R^2+(XL-XC)^2
5.At resonance XL=XC and ZT=R

16. WBahn Moderator

Mar 31, 2012
17,433
4,694
So considering the answers to those questions, what's one observation you can make about the effect of being at the resonant frequency versus not being at that frequency in a series RLC circuit?

Sep 18, 2012
97
0
At the resonance frequency current of series ckt is at maximum and the gain is maximum also

Sep 18, 2012
97
0
19. WBahn Moderator

Mar 31, 2012
17,433
4,694
What is it with you?! Here you go asking us to just provide the answer to your homework again. You need to first show YOUR honest effort to work the problem and ask specific questions about the points you are having difficulty with. But it will have to be someone else that responds, because I'm done with you.