A circuit containing a 80 mH inductor and a 60 μF capacitor in series is connected | Dofollow Social Bookmarking Sites 2016
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Here,Inductance, L = 80 mH = 80 x 10-3H Capacitance, C = 60 μF = 60 × 10-6F Resistance, R = 0RMS voltage, Ev = 230 VPeak voltage, E0 = 2 ×Ev                                = 2 × 230 V Frequency of Ac supply,  f = 50 Hz ∴  ω = 2πf           = 100  π rad/s (a) We have to find I0 = ?,   Iv = ? Therefore,             I0 = E0ωL -1ωL     = 230 2100 π × 80 × 10-3 - 1100 π × 60 × 10-6   = 230 28π -10006π = 230 2-27.91 = -11.63 amp.and,Iv = I02 =-11.631.414 = -8.23 amp.  Negative sign appears as ωL