EEE Formula: AC Circuit - E Tips BD

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Sunday, February 11, 2018

EEE Formula: AC Circuit



EEE Formula: AC Circuit:

Inductive Reactance, XL = 2πfL = ωL (ohm)

Capacitive Reactance, XC = 1/2πfC = 1/ωC  (ohm)

Impedance, Z = R+jXL (R-L Series ckt)

Impedance, Z = R- jXC (R-C Series ckt)

Impedance, Z = R+j(XL - XC) = R2+(XL - XC)2    [R-L-C Series ckt]

Q-Factor = 1/R(L/C)

Resonance Condition, XL = XC  Power Factor = 1

V = IZ

I = V / Z = YV

Y = 1/Z = 1/R + j (1/XC- 1/XL) =  1/R + j (ωC - 1/ωL)

Y = G +  j B (Here,  conductance G = 1 / R  represents the real (conductive) component and B = ( BC - BL ) is the imaginary (reactive) part)

Inductive Susceptance, BL = 1 / XL = 1/ωL

Capacitive Susceptance, BC = 1/ XC = ωC

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