A) equal to resistance
B) zero
C) infinite
D) depending on L and C
Correct Answer: A
Solution :
The impedance of LCR circuit \[Z=\sqrt{{{R}^{2}}+({{X}_{L}}-{{X}_{C}}^{2}}\] In resonance state \[{{X}_{L}}={{X}_{C}}\] \[\therefore \] \[Z=\sqrt{{{R}^{2}}+0}\] \[\Rightarrow \] \[Z=R\]
You need to login to perform this action.
You will be redirected in
3 sec
