In a series LCR circuit R = 200 Ω Ω and the voltage and the frequency of the main supply is 220 V and 50 Hz respectively. On taking out the capacitance from the circuit the current lags behind the voltage by 30 
. On taking out the inductor from the circuit the current leads the voltage by 30 
. The power dissipated in the LCR circuit is
Text Solution
Verified by ExpertsThe correct answer is:
D
tan 30º = 
X L = 
= 
tan 30º = 
X C = 
Z = 
= 200 Ω Ω
i rms = 
= 1.1
P = (i rms ) 2 × R = (1.1) 2 × 200
P = 242 W
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