A) \[1/2\]
B) \[1/\sqrt{2}\]
C) 1
D) \[\sqrt{3}/2\]
Correct Answer: C
Solution :
when L is removed from the circuit | |
\[\frac{{{X}_{C}}}{R}=\tan \frac{\pi }{3}\] | |
\[{{X}_{C}}=R\tan \frac{\pi }{3}\] | ?(1) |
when C is remove from the circuit | |
\[\frac{{{X}_{L}}}{R}=\tan \frac{\pi }{3}\] | |
\[{{X}_{C}}=R\,\tan \frac{\pi }{3}\] | ?(2) |
net impedence \[Z=\sqrt{{{R}^{2}}+{{({{X}_{L}}-{{X}_{C}})}^{2}}}=R\] | |
power factor \[\cos \phi =\frac{R}{Z}=1\] |
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