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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.
An induction motor absorbs an apparent power of 500 kVA at a power factor of 75%, calculate the active and reactive power absorbed by the motor, what purpose does the reactive power serve
At what forward voltage does a diode conduct a current equal to 1000 Is. In terms of Is, what current flows through the same diode when its forward voltage is 0.7V.
BJT Amplifiers Sketch an emitter-follower circuit with R1 = R2 = 50kohm ; RE = 2kohm. The collector of the npn transistor is connected to VCC = 5V and the input signal has an internal resistance, RS = 0.5kohm
What is the clearance requirement for a 120/240 V, single-phase, three-wire service at the point of attachment to the building Over the driveway Over the main roadway
Three identical single phase transformers, each rated at 100KVA, 7KV/3.5KV, are connected as a three phase transformer bank. The high-voltage side of the transformer is connected in delta and the low-voltage side is connected in wye.
Determine the energy uses on farms in middle east and determine whether or not it is better to use a stand alone system or a grid connected system for the application on farms.
Design the circuit to establish a dc emitter current of 1mA and provide the highest possible voltage gain while allowing for a maximum signal swing at the collector of +-2V. Use +10V and -5V power supplies.
(b) Find and list all essential prime implicants of the F function. (c) Find the minimal two level NAND gate implementation of the F function. Find the gate input cost. (d) Find the minimal two level NOR gate implementation of the F function. Find th..
A 10kVA, 200/400V 50Hz single-phase transformer gave the following test results. O/C test: 200V, 1.3A, 120W, on l.v. side. S/C test: 22V, 30A, 200W on h.v. side. (a) Calculate the magnetizing current and the component corresponding to core loss at ..
A semicircular current elment of radius b is positioned in the x-y plane and has its center at the origin. A second long current element is placed along the coordinate y= -b. If current magnitude I flows through each element in clockwise direction..
Sketch a transistor-level schematic of F=(A+BC+DE)' and determine the relative sizing of all the transistors to equalize the rise/fall time.
Analog data having highest harmonic at 30 kHz generated by a sensor has been digitized using 6 level PCM. What will be the rate of digital signal generated
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