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why power factor is lagging for inductor whereas leading for capacitor?
Dear Shris,
Lagging and leading easily related to what called capacitive reactance and inductive reactance. Just see these formulas, and you'll find why for capacitor leading and for inductor lagging.
Capacitive reactance (Xc) = 1 / (2 pi f C)
Inductive reactance (XL) = 2 pi f L
Reactances are somekind of AC resistance. You see in Xc, resistance tends to quite small, makes capacitor current phase LEADS, while in XL, resistance tends to big, makes inductor current phase LAGS.
Angle between voltage & current to mention lead or lag, called cosΦ. Efficient AC circuit should have cosΦ=1.
Thank you very much Shris.
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