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A channel of bandwidth 4 kHz is available. Determine the data rate that can be accommodated for the following line codes (assume a bandwidth to the first spectral null):
a. NRZ change
b. Split phase
c. Unipolar RZ and polar RZ
d. Bipolar RZ
Draw the positive, negative, and zero sequence networks for the system. Include all impedance values and determine the bus voltages at midnight? What problem(s) do you detect?
1.nbspnbsp describe the key features of dc and ac motors-2.nbspnbsp describe the main methods of starting a.c
Four voice signals. each limited to 4 kHz and sampled at Nyquist rate are converted into binary PCM signal using 256 quantization levels. what will be The bit transmission rate for the time-division multiplexed signal.
Calculate the total harmonic distortion (THD) of the waveform for D=0.35 and compare your result to the THD of a square wave.
Consider the current it takes to power a +5V 74xx245(Icc). What is the qualitative difference between the CMOS devices and the non-CMOS devices and the non-CMOS devices What is the explanation for the difference
The synchronous speed of a 60Hz, three-phase induction motor is 1200rpm. What is the synchronous speed of the motor if it is used in a 50Hz system?
The average orbital radius of Neptune is 2.8 billion miles. Given that distance, how long on average does it take light from the sun to reach the planet Neptune in hours (Speed of light in English system = 186,282.4 miles/second)
A temperature of 200 oC is measured using a thermopile having three pairs of measuring junctions as shown in the figure below. The reference junction temperatures are set at room temperature of 25 oC.
A gold wire (resistivity of 2.44× 10(-8) Ω·m and a temperature coefficient of 3.4×10(-3) °C-1) with a radius of 0.100 mm has a uniform electric field of 2.50 V/m imposed along its entire length. The temperature of the wire is 50.0°C.
There are three types of self-excited generators depending upon the manner in which the field winding is connected to the armature, namely;
A voltage divider has a 5 V source and two 150 kilo ohm resistors. What is the voltage across(a) an ideal voltmeter (b) a voltmeter with an input resistance of 10 mega ohms
If 3x10^20 electrons go through the cross section in the z-direction in 4 seconds, and simultaneously, 1.5x10^20 protons go through the same cross section in the negative z-direction, what is the magnitude and direction of the current flowing thro..
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