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- i (t) 40 2 cost A2 i (t) 30 2 cos(t 90) A2. Suppose thatFind i1 + i2。 3. A voltage source V is applied to a 100 μF capacitor.(1)Find the impedance of the capacitor.(2)Find the phasor current and phasor voltage.(3)Draw the phasor diagram.100cos200ut 4. Are the circuit voltages and impedancesgiven in the following diagrams correct?Z 7Ω U=14V ? Z 10Ω U=70V ?(a)34V1V26V8V+_U 6830V40V(b) 5. Are the circuit currents and impedancesgiven in the following diagrams correct?Z 2Ω I=8A ? Z 2Ω I=8A ?(c)4A4 4A4 A2IA1(d)4A4 4A4 A Z1 = (3+j4) Ω, Z2 = (8–j6) Ω， U 2200 V1 2 Find I , I , I .Z1 Z2 U+–I1 I 2 I，A series circuit of RLC with following parameters, R=15 ohm, L=20 m H & C=100 micro Farad. VT=169.7 sin (337t-30) Volt. Find the following: Zt, , It, Voltage across each element, Power factor, apparent power, real or average power and reactive power and the total phasor diagram and power phasor diagramUsing the node-voltage method, determine the magnitude of the phasor voltage V1; that is, find |V1| in Volts (peak). The values of the phasor voltage sources in the above diagram are VA = 3 and VB = 3 Volts. The resistor values are R1 = 4 Ω and R2 = 8 Ω, and X1 = 12 for the capacitor giving an impedance of -j12 Ω. Express your answer using 3 significant figures.
- SUBJECT:AC CIRCUIT ANALYSIS Q#3 Determine I Total , IR1, , IC draw Phasor diagram to show the relationship between VS and I Total1. If ?1 = 30sin (?? + 100) and ?2 = 20sin (?? + 500), which of these statements is true: (a) ?1 leads ?2 (b) ?2 leads ?1 (c) ?1 lags ?2 (d) ?2 lags ?1 (e) ?1 and ?2are in phase 2.A series RC circuit has |??| = 12 ? and |??| = 5 ?. The magnitude of the supply voltage is: (a) -7 V (b) 7 V (c) 13 V (d) 17 VQ: For the following SLD, take Sg = 100 MVA and VB = 22 kV at Bus 1to:1. Draw the impedance diagram with all impedances in pu2. Find Em- 30 MVA40 MVA30 MVAX= j0.6 puX= j0.3 pu(40:15) kV18 kV(15:35) kVEgEmX= j0.3 pu(3+j4) QT.L50 MVA Ti Bus 1Bus 2 T2Load40 MVA23 kVBus 318 kVX = j0.5 pupf = 0.65 lead
- Three branches having impedances of 3+j4 Ω, 16−j12 Ω, and−j4 Ω, respectively, are connected in parallel. What are the equivalent(a) admittance, (b) conductance, and (c) susceptance of the parallelconnection in millisiemens? (d) If the parallel branches are excited froma sinusoidal current source where i=8 cosωt A, what is the maximumamplitude of the current in the purely capacitive branch?IDSS=8mA , VP =-4VTo help plot the DC load line VGS=VG-IDRSa)Determine the value of Vgs when ID=1mAb)Determine the value of Vgs when ID=2mAc)Determine the value of Vgs when ID=3mAd)Determine the value of Vgs when ID=4mAe)Attach a Plot of JFET Characteristic Curve as shown in Figuref)What is the approximate VGSQ?g)What is the approximate IDQ in mA?h)Determine source voltage VS.i)Calculate the drain voltage VD.j)Calculate the drain-to-source voltage VDS.Question Vvv For the series- connected RC circuit, with an alternating current element E(t) = Eo sin wt inserted into it. Assume that the switch is closed at t = 0 and that at that time q(0) = 0 and i(0) =0. Use that Z² =R²+ (wC)- ², where Z is the steady state impedance of the circuit. Find i(t) for t> 0
- Consider the current i(t)= 30sin(100t+90o) mA. is applied the circuit given below. a) Find and draw phasor equivalent of the circuit b) Find Iload and Vload phasors and and draw them on the real-imaginary axis. Find iload(t) and vload(t) via inverse phasor, comment phase angles c)Find active, reactive and complex power (P,Q,S) absorbed by the load. please fastInclassofENG100youwereaskedtoconnectacoilofresistance50Ωand inductance0.318Hwithacircuitcomprisinga75Ωresistorinserieswitha 159μFcapacitor.Andyouconnectedyourresultingcircuittoa240v,50HzAC supply.Calculate:(a)thesupplycurentofyourcircuit;(b)the circuit impedance,resistance and reactance(c)the phase-angle ofthe resulting curent,use sine as yourreference and explainyourresult.(a) Calculate the equivalent impedance of the circuit given below, if the source voltage is v(t) = 60cos1000t (b) Calculate the source current flowing in the circuit (c) Draw the phasor diagram of the current and input voltage