A) 50 ohm
B) 100 ohm
C) 200 ohm
D) 400 ohm
Correct Answer: B
Solution :
When C is removed circuit becomes RL circuit hence tan \[\frac{\pi }{3}\,\,=\,\,\frac{{{X}_{L}}}{R}\] .... (i) When L is removed circuit becomes RC circuit hence tan \[\frac{\pi }{3}\,\,=\,\,\frac{{{X}_{C}}}{R}\] .... (ii) From equations (i) and (ii) we obtain\[{{X}_{L}}={{X}_{C}}\]. This is the condition of resonance and in resonance and in resonance \[Z=R=100\,\,\Omega \]You need to login to perform this action.
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