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PRAKTIKUM I
PRAKTIKUM IVRangkaian RC Paralel
Adi Septiyan N Josh Septian P. Lestari Nurhayati Alat & Bahan
Function Generator : 1KHzOsiloskopResistor:1000 Capasitor: 2,2 uFProject Board
Gambar Rangkaian
Data PercobaanVs (Volt)Vr (Volt)Vc (Volt)UkHtUkHtUkHt66 mV66mV66 mV66mV66 mV66mVIs (Ampere)Ir (Ampere)Ic (Ampere)UkHtUkHtUkHt914,998 uA915,24 uA66,006 uA66 uA912,66 uA912,86 uADiketahui : f = 1000 HzR = 1000 C=2,2 uF
Xc = 1 / 2.f.c= 1 / 2 (3,14) (10^3) (2,2x10-6)= 1 / 13816x10-6= 106 / 13816= 72,38 = 0,07238 k
G = 1 / R= 1 / 1000= 1 x 10-3= 1 mSiemens Bc= 1 / Xc= 1 / 0,07238= 13,815 mSiemens
Ytotal = (G2 + Bc2) = (12 + 13,8152)= (1 + 190,815)= 191,815 = 13,85 mV
Z = 1 / Ytot = 1 / 13,85= 0.072 k
Analisa Data
Vs = I /Ytot= 66,6204 / 1,0094= 66 mVVR = I /Ytot= 66,6204 / 1,0094= 66 mV
Vc= I /Ytot= 66,6204 / 1,0094= 66 mV
VCVRVSVs,VR, danVcVs (Volt)Vr (Volt)Vc (Volt)UkHtUkHtUkHt66 mV66mV66 mV66mV66 mV66mVIR= VS / R= 66 / 1= 66 uA
IC= VS / XC= 66 / 0,0723 = 912,86 uA
IS= (IR 2 + IC 2) = (662 + 912,862)= (4356+ 833313,3796)= (837669,3796)= 915,24 uAIs, IR, dan IcIs (Ampere)Ir (Ampere)Ic (Ampere)UkHtUkHtUkHt914,998 uA915,24 uA66,006 uA66 uA912,66 uA912,86 uA
VSVRVCIRIsICRangkaian VS,VR,VC,IS,IR,dan IC
IsIsIRICVSVRVCRangkaian IR IS
IR IS = tan-1 (IR/IS) = tan-1 (66/ 91,524 ) = tan-1 0,72 = 35,75 ISIR10Rangkaian IS IC
IS IC = tan-1 (IS/IC) = tan-1 (915,24/912,86) = tan-1 1,002 = 45,07 ICISRangkaian IR IC
IR IC = tan-1 (Ic/IR) = tan-1 (912,8 / 666) = tan-1 13,83 = 85,86 ICIR
IR IC
IRICKESIMPULANNilai tegangan VS,VR,VC bernilai sama karena dirangkai secara paralel.Gelombang IS lead terhadap Gelombang IR sebesar 35,75 Gelombang IC lead terhadap Gelombang IS sebesar 45,07 Gelombang IC lead terhadap Gelombang IR sebesar 85,86 Sudut fasa dari (IR IS)+ (Is IC)= (IR IC) dan nilainya tidak melebihi 90. 35,75 +45,07 = 80,82 ; selisih 5 dengan gelombang IR IC.Untuk mencari nilai IS, IR, IC berlaku Teorema Phytagoras.Nilai sudut fasa dipengaruhi oleh besar atau kecil nilai frekuensi, kapasitor, dan resistor.