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Q/ In addition to not dissipating power, a lossless line has two important features: (I) It is dispersion less (u_p is independent of frequency); and (2) its characteristic impedance Z_o is purely real. Sometimes, it is not possible to design a transmission line such that R' «ωL' and G' « ωC'. But it is possible to choose the dimensions of the line and its material properties so as to satisfy the condition R' C'=L' G' (distortionless line) Such a line is called a distortionless line, because despite the fact that it is not lossless, it nonetheless possesses the previously mentioned features of the lossless line. Show that for a distortionless line. α =R' √(C'/L')=√(R' G') β =ω√(L^' C^') Z_0=√(L^'/C^' )
derive and determine the transmission reflection coefficients for a particle traveling with an energy (a) 2ev and (b) 20ev. If the block is given infinite potential and the length is expanded to 1m,(c) what would be the transmission and reflection..
.a. If the following voltage pulse is being applied to a stepper motor coil to the increment the shaft, what type of driving style is being used b. What advantage does this have as opposed to a constant-voltage pulase
A signal is to be sampled with an ideal sampler operating at 8000samples per second. Assuming an ideal low pass antialiasing filter,how can the sampled signal be reconstituted in its original form,and under what conditions
A 60 hertz, 3 phase transmission line has a toal seriesimpedance (Z) of (0.2 + j0.8) ohms per mile per phase and shunt admittance(Y) of (j5.31 E-6) mhos per mile per phase.It delivers 40MW at 220Kv ,with 90% poer factor lagging.
three light bulbs (P1= 30W, P2=40W, P3=50W) are connected in series to a 120v source find the current i through the bulbs. Each bulb is rated 120 volts. how much power is each bulb absorbing do they generate much light
What are the differences between volatile and nonvolatile memory What are advantages and disadvantages of volatile and nonvolatile memories
a) Find the intersection of the two lines. b) Find two vectors that also describe the two lines originating from the intersection. c) Find the angle between the two lines.
According to the tariff the owner agreedwith the utility company, the income generated is $0.16 per kWh atany time of the day. This figure is expected to rise annualy by20%. Ignore interst rates, any fluctuations in dollar etc.
The voltage across a 0.2 H coil is given. What is the sinusoidal expression for the current?
the voltage across and current through a certain device are given v(t)= 5cos(4πt), i(t)= 0.1cos(4πt) a) the instantanous power p(t) at t=0 andt=0.25s b) the average power Pav, define as the averga value p(t)
The input/output relation of a discrete time system is given by y(n) = x(n+1) + x(n-3). Find an expression for h(n), the unit sample response of this system. specify how many non-zero terms there are in h(n).
3-singlephase 2 winding transformers, each rated 500 MVA, 13.8/199.2 kV, with leakage reactance Xeq = 0.10 per unit, are connected to form a three-phase bank. Winding resistances and exciting current are neglected.
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