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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).
Explain and show how ultrasonic range-finding works and is used. Include visual information wherever possible to most effectively convey the information. This section must be organized using headings and subheadings - consider the most effective l..
Problem 1. Explain the purpose of the capacitor in the microphone circuit.
Paper must contain all about the Protection systems for the Solar PV Farms (Plants) Of course - The report must contain a detailed as possible on all types of the protection systems used for PV Solar Farms.
The energy density (that is, the energy per unit volume) at a point in a magnetic field can be shown to be B2/2μ, where B is the flux density and μ is the permeability. Using this result and Eq. (4 .10), show that the total magnetic field energy s..
Why AC rated in Tons, Not in kW or kVA?Also A Guide about Airconditioner and Refrigeration
The campus bus uses an embedded system that tracks the number of passengers getting in and those getting out of the bus. Two circuits with laser photodiodes, connected to RB0 (getting in) and RB1 (getting out), are used to track these numbers.
Calculate by rigorous method the sending end voltage and current when the line is delivering a load of 20 MW at 0.8 p.f. lagging.
Using the results of your program, Calculate the entropy of a source that outputs the 26 English characters with the probabilities you calculated.
Two point charges of +3.0μF and -7.0μF are placed at x=0 and x=0.20m. What is the magnitude of the electric field at the midway point between them
Determine R1 such that IREF = 0.20 mA. - Determine the values of R5 and R6 such that the maximum currents in Q5 and Q6 are 0.12 mA.
What is basic sequential logic building block in which the output follows the data input as long as the ENABLE input is active?
A network router connects multiple computers together and allows them to send messages to each other. If two or more computers send messages simultaniously, they collide and the messages must be resent. Design a collision free circuit for a router..
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