A) \[1/2\]
B) \[1/\sqrt{2}\]
C) 1
D) \[\sqrt{3}/2\]
Correct Answer: C
Solution :
[c] when L is removed from the circuit \[\left[ \because \,\,R=\frac{V}{I}=\frac{80}{10}=8 \right]\] \[{{X}_{C}}=R\,\tan \,\frac{\pi }{3}\] ??(i) when C is remove from the circuit \[\frac{{{X}_{L}}}{R}=\tan \,\frac{\pi }{3}\] \[{{X}_{C}}=R\,\tan \,\frac{\pi }{3}\] ??.(ii) net impedence\[Z=\sqrt{{{R}^{2}}+({{X}_{L}}-{{X}_{C}})}=R\] power factor cos \[\phi \,=\frac{R}{Z}=1\]You need to login to perform this action.
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