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A continuous time system is described by y(t) = t tan(x(t)). The continuous time system is sampled every T seconds to obtain a discrete time system y[n]. determine the mathematical expression for y[n]
For the signal x(t) = 4cos(800p t +p / 4) + 8cos(1200p t -p / 3) - 4cos(1600p t) : (a) Sketch the double--sided spectrum of the signal, indicating the magnitude and phase of each component. (b) W
Consider a CS amplifier with a resistance Rs in the source lead and with the drain short-circuited to ground. Determine the short-circuit transconductance G m. Hence provide the output equivalent ci
find the received power (in W) if the transmitted power is 100 W, the distance of the dipole from the transmitting and receiving antennas is 100 m, the gain of the transmitting and receiving antenna
1) Compute the average power dissipated through the resistor 2) compute RMS voltage across the resistor 3) compute V RMS^2/R. 4) prove that P avr=V RMS62/R for any periodic voltage waveform
Assume that we have an image represents a sinusoidal variation orthogonal to the x-axis with amplitude of 10 and period of 1 cm, that repeats infinitely in all directions within the plane. Further a
A l / 2 dipole, with a total loss resistance of 1 ohm, is connected to a generator whose internal impedance is 50 + j25 . Assuming that the peak voltage of the generator is 2V and the impedance of t
Write an algorithm in pseudo code that finds all prime numbers between 2 and 100. You may use any algorithm to compute them, but be sure that your pseudo code meets the three requirements of an algo
A typical lead acid storage battery has a mass of 30 kg. Starting from a fully charged state, it can supply 5 A for 24 hours with a terminal voltage of 12 V before it is discharged.
A copper wire has a diameter o 2.05mm and carries a current of 5 A due solely to electrons. (These values are common in residential wiring) Each electron has a charge of 1.60x10^-19C. find the avera
R3 connects to point N in the center with current going upward and R1 is to the left of this at the top and then it down to V1, with the current going from R1 to V1. To the right you have R2 across
A switch-mode dc-dc converter is operating at a switching frequency of 20kHz, and Vd=150V. The average current being drawn by the dc motor is 8.0 A. In the equivalent circuit of the dc motor, Ea=100
1. The PowerPC 601 processor addresses a maximum of 2^(32) bytes of memory. What is the maximum number of 64-bit words that can be stored in this memory. 2. A certain IBM 970 processor has a system
To meet the signal-to-noise ratio of the receiver, the received power must be at least 10 µ W. Assuming the two antennas are aligned for maximum reception to each other, including being polari
Write an assembly program that converts a string with four characters into an unsigned 16-bit integer. For example, a string "A23F" should be converted into an unsigned integer. Assume that the inpu
A wire has a resistance of 29.7-ohm . It is melted down, and from the same volume of metal a new wire is made that is 4 times longer than the original wire. What is the resistance of the new wire
A 10-mV signal source having an internal resistance of 200 kO is connected to an amplifier for which the input resistance is 20 kO, the open-circuit voltage gain is 2000 V/V, and the output resistan
Calculate Is and the current I for V = 700 mV for a pn junction for which Na = 1017 / cm³, Nd = 1016 / cm³, A = 200 µm², ni = 1.5 x 10^10 / cm³, Lp = 5 µm, Ln = 10 &m
In a pn junction for which Na >> Nd, and the depletion layer exists mostly on the shallowly doped side with W = 0.3 µm, find Vo if Nd = 10^16 / cm³. Also calculate Qj.
design a 2 bit up/down counter using 2 d flip flops and gates such that a direction bit set to 0 causes a count up and the same "direction bit" set to 1 causes a count down. show state diagram, stat
A ring placed along y^2 + Z^2 =4, x= 0 carries a uniform charge of 5 uC/m. a.)find D at P(3,0,0). b.) if two identical point charges Q are placed at (0,-3,0) and (0,3,0) in addition to the ring, fin
Design a continuous time system to generate output y(t)=sin(wt)u(t) when the input is a unit step function. Specify the system using a differential equation.
Someone needs to explain to me how in God's name can you get a value of 600 watts from 2 sources, one of value 400 watts and another of -600 watts
There are approximately 109 million TVs in the United States. Each uses, on average, 79 W of power and is turned on for 6.9 hours a day. If electrical energy costs 0.073 dollars per kWh, how much mo
The current in the bulb depends on the time t according to the relation I = (0.807 A) sin [(272 rad/s)t]. (a) What is the frequency of the alternating current (b) Determine the resistance of the bul