'7 For t> 0, determine for what value of t i = 2.5 A in the circuit of Figure P5.77 if the circuit is in steady state at t = 0-. 2Ω ww 40 V :20 3Ω ww
Q: 9 At t 0.
A: Given circuit is – Given values are –
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Q: 8 For t > 0, the circuit shown in Figure P5.22 is at steady state. The switch is changed as shown at…
A: The circuit diagram is,
At the steady-state, the inductors act as the short circuit and the circuit becomes completely resistive as shown in the figure given below.
The current drawn for the source is given by,
The current drawn from the source.
The current I shown in the figure is given by,
When the position of the switch is changed, take the Laplace transform of the circuit.
Keep in mind that after closing the switch the inductor will behave like the voltage source so mention the current source in the Laplace domain.
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- Solve for the node voltages shown in Figure P5.53. 10/0 (+ 10 2 +j20 2 15 n 1 Figure P5.53 000What impedance vector - j25 represents:A. A pure resistance. C. A pure capacitance.B. A pure inductance. D. An inductance combined with a resistance.Q5)-a)For this figure shown below the phase relationship between the sinusoidal waveform Of this set. -10sin(wt+80) V=15sin (wt+40) Q5)-b) for this circuit find the max energy if XL=100 Vm-300v,L=0.3H V= Vm Sinwt
- Let's say you measure t1/2 to be 0.037 seconds and the resistance in the circuit is 68 Ohms. Then what is the capacitance in micro Farads? Answer in micro Farads.Shown in the figure below is an "RL" circuit drive by an AC power source. The AC power source has an RMS voltage of Vps (RMS) = 9.84 Volts and is running at a frequency of f = 8.585e+04 Hz. The resistor has a resistance of R = 2170 and the inductor has an inductance of L = 3.54e-03 Henries. Vps R ww Write the FORMULA for the total impedance of the circuit Ztot = Determine the numerical value of Ztot = 2890.5 Determine the numerical value of $z= = 41 Determine the current through the circuit: • I(PEAK) = 4.81E-3 • I(RMS) = 3.404E-3 Determine the voltage across the resistor: • VR(PEAK) = 7.387 • VR(RMS) = 5.22 ✔✔ Amps ✔Amps Write the FORMULA for the phase of the total impedance of the circuit z... = | tan-1 2701 R x Volts X Volts Determine the voltage across the inductor: • VL(PEAK) = 9.184 • VL(RMS) = 6.49 ✔ Volts Volts L R²+ WL- ✔ degrees 2 If a second circuit were connected in parallel with the inductor, this circuit would be considered as: O a low-pass filter O a capacitive switcher…What impedance vector (0- j15) Ohms represents:A. A pure resistance. C. A pure capacitance.B. A pure inductance. D. An inductance combined with a capacitance.
- *P5.81. Two loads, A and B, are connected in parallel across a 1-kV-rms 60-Hz line, as shown in Figure P5.81. Load A consumes has an apparent power of 15 and contine es tor: wind wer and a 90 percent lagging power factor. Load B an Find the 1 kV rms 60 Hz 80 percent lagging power factor. power, reactive power, and apparent power delivered by the source. What is the power factor seen by the source? Iline A Figure P5.81 10 kW with B IBThe ripple factor for pure dc is Answer:P5.90. a. Find the Thévento and Norton equivalent circuits for the circuit shown in Figure P5.90. b. Find the maximum power that this circuit can deliver to a load if the load can have any complex impedance. c. Repeat if the load must be purely resistive. 100/45° 10 Ω www enpea gineering Pr +j5 n Figure P5.90 15/0°
- Consider the circuit shown in Figure P5.49. Find the phasors Is, V, IR, IL and IC. Compare the peak value of iL(t) with the peak value of is(t). Do you find the answer surprising? Explain.A capacitor "C", an inductor "L" and a switch "S" are connected in series. When the switch is open, the plate to the left of the capacitor has charge "Qo". The switch is closed the load and current vary sinusoidally with time. Represent graphically the load "Qo" and the intensity of current "I" as a function of time "t", and explain why the current leads the load by a phase difference of 90°.A resistor & a capacitor are connected in series across 230V, ac supply. The current taken by the circuit is 4 A for 50 Hz frequency. The current is reduced to 2 A, when the frequency of supply is decreased to 40 Hz. Determine the value of resistor & the capacitor.