school circuit problem

[dnolan747]

so its the same as impedance,,, in a series RLC circuit the XL and XC cancel and the impedance=resistance

 

[dnolan747]

so if you measure across the inductor and capacitor you get 0v and if you measure across the capacitor and the resistor you get 100v and if you measure across all 3 you get 100v..... i do understand now if this is correct

 

[Roff]

so its the same as impedance,,, in a series RLC circuit the XL and XC cancel and the impedance=resistance

Yep. The voltages cancel because the reactances cancel.
Note that VL and VC don't have to equal VR to cancel. VL and VC just have to be equal in magnitude.

 

[dnolan747]

thanks Roff for all the help and patience and i really do understand now hopefully i can proceed in my studies,,, i really do THANK YOU you have been a tremendous help to me

Dean

 

[birdman0_o]

300 volts, if its a series circuit you just add them all up to find the voltage of the source.

Your wrong.

did you not read Roff's post?

Yes it is a series circuit but you are ignoring the phase of each component, the inductor is leading by 90 degrees and the capacitor is lagging by 90 degrees, at resonance they cancel out. 100V + 100V - 100 V = 100V, not 300V.

 

[Mikebits]

Quote:
Originally Posted by electech2u
300 volts, if its a series circuit you just add them all up to find the voltage of the source.


Your wrong.

did you not read Roff's post?

Yes it is a series circuit but you are ignoring the phase of each component, the inductor is leading by 90 degrees and the capacitor is lagging by 90 degrees, at resonance they cancel out. 100V + 100V - 100 V = 100V, not 300V.

Okay, I must be going crazy, how is Electech's post disappearing? There one sec, gone the next? I must be losing it. Hacker?

 

[Roff]

Okay, I must be going crazy, how is Electech's post disappearing? There one sec, gone the next? I must be losing it. Hacker?

I think he deleted it. I never even saw it.