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the binary exponential back-off algorithm is defined by IEE802thus:" The delay is an integral multiple of slot time. The numberof slot times to delay before the nth retransmission attempt ischosen as a uniformly distributed random integer r in the range0<r<2^k, where k=min(n,10)." slot time is ,roughly, twice theround-trip propagation delay. Assume that two stations always havea frame to send. After a collision, what is the mean number of retransmission attempts before on station successfully transmits?
One side of the transformer bank is connected to a 120-kV transmission line, and the other side is connected to a three-phase load of 10 MVA at 13.2kV and 0.8 lagging power factor. Using the base in the tranmission line of 120-kV and 20 MVA.
A total charge of Q is uniformly distributed on the inner wall of a spherical dielectric shell having inner and outer radius of a and b. The relative dielectric constant of the shell is fr.
The nickel- cadmium (nicad) battery is a secondary battery, meaning it can be recharged. it has the following reactions occuring during discharge: A nicad battery has .87 g of cadmium, which is the limiting reactant.
In a MOS cascode amplifier, the cascode transistor is required to raise the output resistance by a factor of 40. (1) If the transistor is operated at Vov=0.2V, what must its VA be
The current through a particular circuit element is given by i(t) = 10sin(200*pi*t) A. Determine the net charge that passes through the element between t=0 and t=10ms. Repeat for the interval t=0 and t=15ms.
Provide a simple class definition and then provide the syntax and the rationale for declaring an array of objects of the class. Also explain the dimension of the array and why you chose that number of elements for the object array.
Unfortunately, nick is pretty lazy and doesn't want to design another filter. thinking twice the filtering gives twice the proforamce," he suggests filtering the audio signal not once or twice with a cascade of 2 idential filters.
Suppose you are told that a Moore machine has five flip flops, three inputs and nine outputs. What is the minimum and maximum number of states in the state diagram, the minimum and maximum number of transition arrows at a particular state
A single-loop negative feedback system has the loop transfer equation: L(s) = Gc(s)G(s) = K(s + 2)2 / (s(s2 + 1)(s + 8)) a. Sketch the root locus for 0 K infinity to indicate the significant features of the locus.
An Underwater Optical Communication System and implementing Reed-Solomon Channel Coding
CdS photodetector is irradiated by light with wave-length of 450nm and intensity of 30Wm^-2. If the band gap of CdS is 2.4 eV and all electron-hole pairs are extracted without recombination. What is current density of this photodetector
In a balanced three-phase system the Y-connected impedances are 3∠60°Ω. If V_bc=480∠-75° V, find current of phase "b" in polar form.
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