hwmadeeasy – electrical engineering

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2.8 Find α and Z0 of a distortionless line whose R′ =2ohm/mandG′ =2×10−4 S/m.

Solved54 viewshwmadeeasy Selected answer as best Electro magnetics transmission lines

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A power transmission line has an inductance per unit length of 0.9 nano-henry per meter, 28 nano-farads per meter, 0.9 micro-ohms per meter and 0 siemens per meter. What is the reflection coefficient at a load resistance of 0.25 ohms, at an angular frequency of 100π radians per second? Give only the real part of your answer in this question, accurate to 1%.

Solved61 viewshwmadeeasy Selected answer as best Electro magnetics transmission lines

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2. For the system shown in figure: G(s) = K/(s+5)(s+20)(s+50) Do the following: a. Draw the Bode log-magnitude and phase plots. b. Find the range of k for stability from your Bode plots. b. Find the range of k for stability from your Bode plots. c. Evaluate gain margin, phase margin, zero dB frequncy, and 180 frequency from your Bode plots for k=10.000

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1) For the Bode plot of the magnitude of an RC-circuit, identify the magnitude response at 10, 100, and 1000 Hz? 2) For the RC-circuit of Problem 1, identify the phase response at 10, 100, and 1000 Hz?

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A buffer amplifier with a gain of 1 V/V has an input resistance of 1MΩ1MΩ and an output resistance of 20Ω.20Ω. It is connected between a 1-V, 200−kΩ200−kΩ source and a 100−Ω100−Ω load. What load voltage results? What are the corresponding voltage, current, and power gains (in dB)?

51 viewshwmadeeasy Answered question Microelectronics BJTs MOSFET amplifier circuits

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An amplifier has a voltage gain of 100 V/V and a current gain of 1000 A/A. Express the voltage and current gains in decibels and find the power gain.

41 viewshwmadeeasy Answered question Microelectronics BJTs MOSFET amplifier circuits

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A high-voltage transmission line with a resistance of 0.31 Ω/kmΩ/km carries a current of 1 000 A. The line is at a potential of 700 kV at the power station and carries the current to a city located 160 km from the station. What fraction of the transmitted power does this loss represent?

52 viewshwmadeeasy Answered question Electric circuits

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1) Using rhe graph sheet attached, sketch Bode plot for the system with the transfer function.

65 viewsgulshan Asked question BODE PLOT

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Sketch the Bode diagrams of the mechanical systems shown in fig:

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Draw the Bode plots for the following transfer functions

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Use the Bode plot shown below to answer the following questions:

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Based on the Bode plot shown below, calculate; a. Gain Margin b. Phase Margin

41 viewsgulshan Asked question BODE PLOT

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Consider the provided Bode plots:

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Bode plots. (a) Consider the following system. G(s)= -3(s-10)/(s-1)(s-3)

33 viewsgulshan Asked question BODE PLOT

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The Bode plot represents the loop Transfer function GH(s) of the system: Y(s)/R(s)=G/1+GH

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Given the following Bode plots, estimate the transfer function

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Consider the following transfer function G(s)=1/s(s+3)(s+2) with the corresponding Bode plot:

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From the Bode plots below, which was obtained from an open loop system

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Consider the following magnitude bode diagram

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Sketch the magnitude and phase Bode plots.

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17. Find the transfer function for each network show in figure?

9. For each of the following transfer functions, write the corresponding differential equation.

8. A system is described by the following differential equation. find the expression for the transfer function of the system ?

2. Using the Laplace transform pairs of table 2.1 and the Laplace transform theorems of Table 2.2 derive the Laplace transforms for the following time functions :

18 Given the electric network shown in figure P1.6 a. write the differential equation for the network b. Solve the differential equation for the current, if there is no initial energy in the network c. make a plot of your solution if R/L=1?

4. We can build a control system that will automatically adjust a motorcycle radio volume as the noise generated by the motorcycle changes. The noise generated by the motorcycle increases with speed. As the noise increases. the system increases the volume of the radio. Assume that the amount of noise can be represented by a voltage generated by the speedometer cable, and the volume of the radio is controlled by a dc voltage if the dc voltage represents the desired volume disturbed by the motorcycle noise, draw the functional block diagram of the automatic volume control system. showing the input transducer?

54. In the circuit shown in figure obtain an expression?

39. The circuit depicted in figure is just barely underdamped (a) compute and obtain an expression of valid for determine how much energy is stored in the capacitor and in the inductor ?

35. For the circuit of figure determine?

23. A critically damped parallel RLC circuit is constructed from component values respectively (a) verify that the circuit is indeed critical damped (b) Explain why in practice the circuit once fabricated is likely in be truly critically damped (c) The inductor initially stores of energy while the capacitor is initially discharged Determine the magnitude of the capacitor voltage the maximum absolute capacitor voltage and the settling time.

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