how do i find the capacitive reactance if the total impedance of this circuit is 100

. The value of the resistor is 100

, and the inductive reactance is 100

????

 

Hmm, so elements are connected in Series RLC??

 

This part of our Ebook will give you the information you need - http://www.allaboutcircuits.com/vol_2/chpt_6/2.html

 

yes there in series.

 

Yes they are in series

 

The total impedance of a series LC circuit approaches zero as the power supply frequency approaches resonance.
So in resonance the impedance will by equal R.
Now you should have no problems to find Xc

 

thank you i got it now