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A coaxial line is filled with a very slightly lossy material with a relative dielectric constant of 5
The line would have a characteristic impedance of 100 ohm if it was air-filled.
(a) What is the characteristic impedance of the dielectric-filled line?
(b) What is the propagation constant at 500 MHz? Use the fact that the velocity of an EM wave in a lossless air-filled line is the same as that of free-space propagation in air. That is, the propagation constant is the same.
(c) What is the input·impedance of the line if it has an electrical length of 90° and it is terminated in a 35 ohm resistor?
(d) What is the input impedance of the line if it has an electrical length of 180° and is terminated in an inductor of impedance j35 ohm?
(e) What is the input impedance of the line if it is l km long? Use reasonable approximations,remembering that the line is slightly lossy.
Calculate the de Broglie wavelength of the following: A proton with kinetic energy of 1 M eV.
Assume that an additional inductance can be inserted in series with the load. Also assume that the converter has no freewheeling diodes. Calculate the added inductance that leads to a conduction period of 180 degrees when alpha = 30 degrees.
Transfer function : key informaiton, A linear time-invariant discrete-time system is excited by the input x[n] = d[n] + 2u[n-1] (d represents δ(delta)). The resulting output response with zero initial conditions is y[n] = ((0.5)^n * u[n]). De..
Eble Company proposes to invest $6 million in a new type of text printing equipment. The fixed costs are $1 million per year. The equipment is expected to last for 5 years. The manufacturing costs per hammer is $1. Calculate the break-even volume ..
Determine the relative permittivity of the dielectric, the maximum and minimum electric field intensities in medium 1 and the electric field intensity in medium 2.
A silicon diode with a breakdown voltage of 2000V that is conducting a forward current of 2000A is turned off with a constant diR/dt=250 A/s. Roughly estimate the time required for the diode to turn off.
A certain sawtooth generator has the following parameter values: Vin: 3v, R: 4.7kohm, C:0.001uf. Determine its peak-to-peak output voltage if the period is 10 us. What is the Vpp
An LVDT with associated signal conditioning will be used to measure work-piece motion from -20 to +20 cm. The static transfer function is 2.5 mV/mm. The output will be interfaced to a computer via an ADC.
How many atoms are found inside a unit cell of a simple cubic, body-centered cubic, and faced-centered cubic crystal How far apart interms of lattice constant a are nearest neighbor atoms in each case, measured from center to center
The power factor of a load connected to a 120-V 60-Hz source is raised from 0.866 lagging to 0.966 leading by connecting a 110.5-F capacitor in parallel with the load. Determine the load current I1 and the circuit current IT
Consider a virtual memory system that can address a total of 232 bytes. You have unlimited hard drive space, but are limited to only 8 MB of semiconductor (physical) memory. Assume that virtual and physical pages are each 4 KB in size.
A silicon semiconductor resistor is in the shape of a rectangular bar with a cross sectional area of 1x10^-6 cm^2 a length of 0.1 cm and is doped with a donor concentration of 5x10^16 cm^-3.
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