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Brandon Jenner
ECT 125

CHP 11
34.) calculate component current and voltage values. XL(1)= 2 pie fl = 2 pie (60Hz)(470mH) = 177 ohms XL(2) = 2 pie fl = 2 pie (60Hz)(1H) = 376 ohms XL(T) = XL1 + XL2 = 553 ohms Z = _/XL(T)^2 + R^2 = _/(553)^2 + (1000 ohms)^2 = 1.1k ohms IL(T) = Vs/Zt = 120/1.1kohms = 105.2mA IR = Vs/R = 120/1k ohms = 120mA VL(1) = XL(1)/ZT = 177ohms/1.1k ohms = 160.9mV VL(2) = XL(2)/Zt = 376 ohms/1.1 kohms = 341.8m V VLR = R/Zt = 120/1.1k ohms = 909.mV

CHP 13
34.) Calculate current and voltage. Xc = 1/ 2 pie fc = 1 / 2 pie (220Hz)(0.47uF) = 1.5kohms Zp = XcR2/_/Xc^2 + Rt^2 = (1.5kohms)(1.5kohms)/_/(1.5kohms^2)+(1.5kohms^2) = 1.06kohms 0 = tan^-1 (R2/-Xc) = tan^-1 1.5kohms/1.5kohms = -45 degrees R = Z cos 0 = (1.06kohms) cos (-45degrees) = 749 ohms Xc = Z sin 0 = (1.06kohms)sin(-45degrees) = -749 ohms Zt = _/Xc^2 + Rt^2 = _/1.5kohms^2+1.3kohms^2 = 1.9kohms 0 = tan^-1 (-Xc/Rt) = tan^-1 (-1.5kohms/1.3kohms) = -49 degrees It = Vs/Rt = 6V/1.69kohms /_-49degrees = 3.15mA /_-49 degrees Vr1 = It*Rt = (3.15mA)(560ohms) = 1.76V Vp = 3.3V /_-45degrees Ic = 3.3V/_-45 degrees/1.5kohms/_-90 degrees = 2.2mA /_-45 degrees Ir2 = Vp/R2 = 3.3V /_ -45 degrees/1.5kohms /_0 degrees = 2.2mA /_-45 degrees

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