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Suppose that we define the value of the complex constant A as A = -2 + 2j. Write the constant A in magnitude-angle form, that is, find |A| and A such that A = |A|ej A Sketch the real part of the fun
Let y1(t)=y2(t)=t-1 over 0<=t<=1. Notice, this statement does not require y1(t)=y2(t) for all t. A) Define y1(t) as an even, periodic signal with period T1=2. Determine it's power. B) Design an
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.
Design a digital security system for a four-door sedan car. There are sensors on all doors, hood, gas cover, and the trunk. When the car is locked, an alarm will sound if somebody tries to force ope
Assume the motor is connected in wyne and that each branch can be represented by a resistance R in series with an inductive reactance X. (a) Calculate the value of R and X. (b) What is the phase ang
A 60 hp, 3-phase motor absorbs 50 kW from a 600 V, 3-phase line. If the line current is 60 A, calculate the following: (a) The efficiency of the motor (b) The apparent power absorbed by the motor (c
A circuit consists of two 1.0 k ohm resistors in series and this series being connected in parallel to a 570 ohm resistor. If the voltage drop across one of the 1.0 k ohm resistors is 4.5 V, what is
Consider the function f(A,B,C,D) = fm(0,1,4,5,8,9,13,14,15) 1. Map the function, and obtain a minimal sum of products cover. 2. Express the sum of products expression for the minimal cover. F (S
create a graph showing the relationship of an ideal gas between pressure (P) and temperature (T). The ideal gas law relates the pressure, volume, amount, and temperature of an ideal gas using the re
a. Determine the frequency and the period of x(t) b. Given another signal, y(t)= sin(3/4(t+1)+3/8), is y(t) identical to x(t) Why c. Given a discrete time signal x[n] = cos(3/4(n+1/2)+1/4) is it perio
Compare and contrast transmit and receive diversity. Describe how each diversity type lead to an improvement in system performance.
Calculate the raial ion transport flux n_i*v_i_r in a cylindrical hydrogen plasma which has an axial curent of 1MA unifmorly distributed over a plasma of radius a = 1 m, has a uniform temperature of
the doping level of N-type semiconductor is ND = 5x10^19 cm^-3. Determine the room-temperature position of the Fermi level (with respect to the borrom of the conduction band) if the semiconductor is
An analog AMPS cell phone channel at 900MHz carrier has a carrier amplitude of 4V and is a modulation signal m(t)=Bmsin(10000*pi*t). The amplitude of the modulating signal is 2V and the peak freque
A new phone company wants to provide very cheap voice-only cell phone capability to 200,000 simultaneous users in San Francisco. They transmit only 8kbs per duplex channel using FDMA (frequency div
a) What is the minimum bandwidth that they need b) If the carrier amplitude in the transmitter (before the power amplifier at the output) is 5V, what is the maximum signal amplitude they can permit
Given that the number of charges measured at t1 is n1 = 2.20×10^19, and the number of charges measured at t2 is n2 = 7.15×10^19. Find the current flow if the time interval between t1 and
A y polarized UPW motion in + x direction in free space has a maximum value of 20 (V/m) at a point x=1.5 (m) with the next adjacent minimum at x=2.75 (m) at time t=0 Obtain the wavelength and the fr
What are the main differences between MS antennas and BS antennas. List the antennas used at mobile stations and describe the construction and characteristics of one of them in detail.
1. ) calculate the consumption of energy , taken from WAPDA, solar panels etc. 2. ) Transfer this data wirelessly to the grid station Please provide some ideas to implement this and list of componen
1. Find the transfer function 2. Find the Laplace transformation of the output when x(t)=sin(t)u(t) 3.Find the output by taking the inverse Laplace transform of part 2.
What is the principle behind CRT(CATHODE RAY OSCILLOSCOPE), and How this method is simplified in LCD and LED. Is the same CRT principle used in LCD and LED Televisions. If no what is the principle u
For a discrete-time LTI system, the imput signal is x[n], impulse response is h[n] and output is y[n]. Analytically determine the output y[n] in each of the above cases. x[n]=anu[n-2],|a| <1 and
(1) What does the words leads and lag represent in factor In waveform (2) How would you change the power factor if you needed to
Consider two discrete sequences: x = [7.7, 5.2, 2.2] y = [1.0, 9.3, 3.1] Let z be the convolution of x and y. What is the 4th non-zero value of z (from the left)