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Communication Channel A particularly interesting communication channel can be modeled as a linear, time-invariant system. When the transmitted signal x (t) is a pulse, the received signal r (t) is as shown (Figure 2.22).
a) What will be the received signal when the transmitter sends the pulse sequence (Figure 2.23) x1 (t)?
b) What will be the received signal when the transmitter sends the pulse signal (Figure 2.23) x2 (t) that has half the duration as the original?
A 40-hp, 500 V, 1200-rpm DC shunt motor has rotationallosses of 2000 W at rated speed. The armature resistance is 0.46Ω and the field resistance is300Ω. A) Calculate the armature current when the motor is delivering rated load at rated voltage and..
The diameter of no.12 Copper wire is 0.081in. The max. safe currentit can carry is 20 A. At this current, what is the drift velocityof the electrons (the number of electrons carries on cubiccentimeter of copper is 8.5 x 1022.)
A Schottky diode is formed between a metal of work function eφm=4.7eV, and a semiconductor of electron affinity eφB=4.0eV. The semiconductor is n-type with Nd=1016 cm-3, Nc=1019 cm-3 and εR =12.
a) Compute and plot the magnitude of the DFT for f(t) using "fftshift", assuming a sampling rate of 8000 Hz and a duration of 0.5 second. b) Window the samples of f(t) using a hann window
Find the components and the length of the vector u with initial point P(1, 1, -3) and terminal point Q(-2, -1, 4). Sketch u and determine the unit vector in the direction of u. Find the inverse by Gauss-Jordan (or state that it does not exist) of t..
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.
Use Mat lab to charge neutrality equation in order to plot the Fermi level as a function of doping vs. temperature for Si, GaAs, SiC, and GaN. Using Phosphorous as a donor dopant at 1e18, 1e16, 1e14, and 1e12 for each material above
A uniform plane wave in a lossy medium has a phase constant of1.6 rad/m at 10MHz and its magnitude is reduced by 60% for every 2m traveled. (a) How much attenuation will the wave suffer indB/m
If in an ideal op amp has no current coming out of the inverting terminal and the non-inverting terminal then shouldn't the current going through the 9k Ω resistor be equal to 1mA and also can't the 15k and 6k ohm resistor be combined in parallel
The objective is to design a discrete common-emitter amplifier, the common-emitter amplifier is to have the following specifications: single ended input and output Av approximately 20 in the midband 3-dB bandwidth extending from 10 Hz
How to find the damping ratio and undamped natural frequency given a 2nd-order differential equation.
The SV curve can be used to understand the impact of constant power factor shunt compensation support. In this case, the receiving end is injected with a specific amount of reactive power so that the receiving end maintains a constant load power f..
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