Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 12 (Q.No. 19)
19.
In a series LCR circuit the maximum inductor voltage is twice the maximum capacitor voltage however current lags by 30° and drop across the inductance is vL = 100 sin 377t V. Assuming the resistance being 20 Ω, Find the values of the capacitance and inductance.
235 μF, 61.18 μH
230 μF, 61.18 μH
61.18 μF, 230 μH
None of the above
Answer: Option
Explanation:

vL max = 100 V = ωL Imax

2Imax = ωL X ωC Imax

ω2LC = 2

ω2LC = 2

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