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1. Calculate the length of time it takes for a signal to pass down an Ethernet bus that is 300 m in length, assuming the velocity factor of the cable is 0.66.
2. For the Ethernet bus in problem 1 and a communication rate of 10 Mb/s, calculate the total number of bits that would be sent by each station before it detected a collision if:
a) both stations begin to transmit at the same time
b) one station begins to transmit at the first possible moment such that its transmission would not be detected by the other station before it began its transmission
3. Discuss the advantages and disadvantages of shorter and longer packets for different link error rates and different types of data.
4. How many addresses are available in IP version 6? Express this as a decimal number in power-of-ten notation.
design the controller and estimator so that the closed-loop unit step response to a command input has a rise time tr
how does Intel's architecture differ from MiPS?
A resistive temperature sensor is modeled as R(T) = 100 +0.0039(T-25)+1.0x10^-5(T-25)^2 where T is in degrees C. Calculate the tempco and sensitivity at T = 50 degrees C.
Calculate the electron and hole densities in an n-type silicon wafer (Nd=10^17 cm^-3) illuminated uniformly with 100 mW/cm^2 of red light (Eph = 1.8 eV). The absorption absorption coefficient of red light in silicon is 10^-3 cm^-1.
Assume that a receiver has a first amplifier stage with a 5K input resistance, a power gain of 300, an input audio signal of 20 uV, and an operating temperature of 27'C. When the amplifier is operating with a bandwidth first of 10 MHz
A discrete-time signal x[n] is periodic with period 8. One period of its DFT harmonic function is {X[0],...,X[7]}={3,4+ j5,- 4 - j3,1+ j5,- 4,1- j5,- 4 + j3,4 - j5}. (a) What is the average value of x[n] (b) What is the signal power of x[n]
Each pole of a 100kW, 250v flet-compound generator has a shunt field of 2000 turns and a series field of 7 turns. If the total shunt field resistance is 100 ohms, calculate mmf when the machine operates at rated voltage.
10.0-L ask contains 1.031 g O2 and 0.572 g CO2 at 18C. What are the partial pressures of oxygen and carbon dioxide. What is the total pressure. What is the mole fraction of oxygen in the mixture.
The probability that a person will install a black telephone in a residence is estimated to be 0.3. Find the probability that the tenth phone installed in a new subdivision is the fifth black phone.
A 50 kVA, 6360V/230V transformer is tested on open and short-circuit to obtain its efficiency. The results of the tests are as follows. Open circuit: primary voltage, 6360V; primary current, 1A; power input, 2 kW. Short circuit: voltage across pri..
Data at a rate of 2 Mbps is to be transmitted via a pass-band communication system whose carrier frequency is 500MHz. A binary antipodal system with roll-off factor of 0.2 is used for this communication. The AWGN single-sided power spectral densit..
What does "transfer function" of a filter represent What do the Amplitude Ratio (Gain) and Phase Angle represent What are the key differences between a real filter (the RC circuit) and an Ideal Filter (please read LPF Treated as an Ideal Filter)
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