- #1
The question should be 'which ammeter may/could read zero ampere?'.May be I am missing something very fundamental .
OK .The question should be 'which ammeter may/could read zero ampere?'.
There is a specific value of ω for which one of the meters would read zero.
Have you studied electrical resonance?Could you please elaborate .
In series LCR circuit . But this is different .Have you studied electrical resonance?
What will happen at resonant frequency in this circuit? What is the effective impedance of this circuit at resonance?In series LCR circuit . But this is different .
Resonance occurs at a particular frequency where X_{c}=X_{L}. In this circuit, what would be the equivalent reactance at resonance?Sorry ! As I said I know only series LCR circuit .
Equivalent reactance should be 0 . The net impedance should be equal to the resistance but since there is no resistance R in this circuit , net impedance Z will also be 0 .In this circuit, what would be the equivalent reactance at resonance?
No, the reactances are in parallel here.Equivalent reactance should be 0 . The net impedance should be equal to the resistance but since there is no resistance R in this circuit , net impedance Z will also be 0 .
Should the equivalent reactance be infinite ?No, the reactances are in parallel here.
Yes.Should the equivalent reactance be infinite ?
OK . In that case current in A_{3} will be zero at resonance ?Yes.
Yes.OK . In that case current in A_{3} will be zero at resonance ?
OK .Yes.
Is the frequency ω altered continuously till the circuit resonates at a particular frequency ?Here you can see that the source doesn't supply any current. This means the energy keeps oscillating between L and C and no power is drawn from the source.
Yes.Is the frequency altered continuously till the circuit resonates at a particular frequency ?
I am asking this because some current has to flow through A_{3} initially so that energy could be stored in L/C .
That you need to see using transient analysis.Would you say there will be no current in the circuit anytime anywhere
Yes.That means , in the transient period , there will be non zero current in A_{3} even at resonant frequency ?
Here, after doing some math, you can seeYes.
I'll try to find the exact equation for current once I reach home.