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1. Sketch the variation of optical power with time for a digital NRZ bit stream 010111101110 by assuming a bit rate of 2.5 Gb/s. What is the duration of the shortest and widest optical pulse?
2. A 1.55-µm fiber-optic communication system is transmitting digital signals over 100 km at 2 Gb/s. The transmitter launches 2 mW of average power into the fiber cable, having a net loss of 0.3 dB/km. How many photons are incident on the receiver during a single 1 bit? Assume that 0 bits carry no power, while 1 bits are in the form of a rectangular pulse occupying the entire bit slot (NRZ format).
An instructor in Engineering Department has the following grading policy: "Curving of grades is achieved by adding to every grade the difference between 99 and the highest grade in the class"
The minimum stopping distance for a car traveling at a speed of 30m/sand is 60 m including the distance traveled during the driver's reaction time of 0.53 s. What is the minimum stopping distance for the same car traveling
A shunt-connected motor has the magnetization curve shown in Figure. Ignore rotational losses in this problem. The motor is supplied from a source of VT = 240V and has RA = 1.5 Ω. The total field resistance is RF + Radj = 160 Ω. Find the no-load ..
design a negative edge-triggered d flip-flop that uses three sr latches constructed with cross-coupled nor gates.
A 1000/5 A currenttransformer bar primary type has the loss component of excitingcurrent equal to 0.7% of the primary current. Find the ratio error(i) when the turn's ratio is equal to normal ratio (ii) when the secondary turn is reduced by 0.5%.
Consider a rubber plate that is in contact with nitrogen gas at 298 K and 250 kPa. Determine the molar and mass density of nitrogen in the rubber at the interface.
Given a sinusoidal function, write a program to determine the rms value, frequency, and period.
Capture the following system behavior as an HLSM. The system counts the number of events on a single bit input B and always outputs that number unsigned on a 16-bit output C, which is initially0. An event is a change from 0 to 1 or from 1 to 0.
Lithium chloride crystallizes in a face-centered cubic structure. The unit cell length is 5.14 10-8 cm. The chloride ions are touching each other along the face diagonal of the unit cell. The lithium ions fit into the holes between the chloride io..
A rectangular coil carrying a current of 2 A (counter-clockwise) is located on the xy-plane in the presence of B = 2ux - uy + 1.5uz . Its corners are the points (±1, ±2, 0). Find the force experienced by each of the four sides of the rectangle.
Consider the circuit diagram below. Use superposition to find voltage Vx as drawn. Draw all sub-circuits in your analysis to receive full credit.
A capacitor is made with very large plates separated a distance d. The potential between the plates is V=1000 volts and d = 1mm. a) Calculate the pressure the plates exert on the air between the plates.
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