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One of your engineers suggests to use a coax cable of a gain of -1 cB at room temperature (290K) for input into a 28 K low-noise aplifier.
a) What is the total temperature of this combination?b) Is this a soluton you agree to, Yes or No? (explain)c) Does it make sense to cool the coax cable? (explain)
A small businessman planes to start a taxi -service and purchased a new car for #36000 with borrowed money at 15% compounded annually , his net income is $12000 per year and the salvage value of the car at the end of 4 years is $5000.
On a breadboards, hook up an IR LED to provide an infrared light source for signaling the phototransistor as shown in Figure 2 below. Use a pushbutton switch to turn the IR LED on and off.
Transmission line A coaxial transmission line has characteristic impedance Z0 = 50 ohms and has length L = 200 m and phase velocity vp = 2.0e8 m/s. The end at x = 0 is terminated with Rs = 50 ohms and the end at x = L is terminated with RL = 75 oh..
function [y,m] = averaging(x, n, N) where "y" is the output sequence, "m" is the corresponding index vector, "x" is the input sequences with index vector "n", and "N" is the order of the averaging filter.
Design a parallel resonant circuit so that a variable capacitor can adjust the resonant frequency over the AM broadcast band, 535 to 1605 kHz, with Q
Let x(t) = cos(3/4(t+1/2)+1/4) a. Determine the frequency, the period of x(t) b. Given another signal, y(t)= sin(3/4(t+1)+3/8), is y(t) identical to x(t) Why
Find the Laplace transform of the following: (i) f(t)= 45e^(-5(t-6)) (j) f(t)=2 sin(t-6) (k) f(t)="4.8" e^(-5t) cos?(400t -36o) (l) f(t)=8 d2x/dt2 + 5 dx/dt where (dx(0))/dt = 8 and x(0) = -4
Calculate the energy stored by a 1 μF capacitor with 200V applied across its terminals. Determine the magnitude of net charge stored on each plate and the total net charge on both plates.
the doping level of N-type semiconductor is ND = 5x10^19 cm^-3. Determine the room-temperature position of the Fermi level (with respect to the borrom of the conduction band) if the semiconductor is Si (Nc = 2.86x10^19).
Two capacitors labeled A and B are connected in series. They have the same charge but A has twice the voltage across it than B has. Which capacitor has the greatest capacitance
Use the Schroedinger wave equation to derive an expression for the confined energies of an electron trapped between two barriers separated by a distance, a. Hint: Take the potential to be constant and equal to zero between 0 and a
A sequential circuit has two inputs (A and B) and contains one JK flip-flop that has only JK and clock inputs. If A = B the flip-flop is unchanged, otherwise the flipflop is complemented. Find the excitation equation for the JK flip-flop
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