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A person with a receiver is 5 km away from the transmitter .What is the distance that this person must move further to detect a 3dB decrease in signal strength.
A causal linear time-invariant continuous-time system has impulse respose h(t)=(sin t)u(t-2). Compute the output respone y(t) for all t is greater than 0. compute the output response y(t) when x(t)=u(t) -u(t-1).
Describe what precautions you will take in designing the analog front end of the instrument before you perform the sampling for DSProcesing. Justify your claims by using engineering arguments.
A shunt regulator utilizing a zener diode is biased on through a 100 resistor. Determine the change in the regulated output voltage for the two situations below: a) VI changes +2.0 V, ILoad constant b) ILoad changes +100 mA, VI constan..
What is the major difference between a bipolar and a unipolar device Which of the transistor currents is always the largest Which is always the smallest? Which two currents are relatively close in magnitude
Each of the four members of a "jukebox jury" is provided with a pushbutton; the button is pressed if the record played is a "hit" and is not pressed if the record played is a "miss". Design a digital logic system that lights a lamp
Consider a virtual memory system that can address a total of 232 bytes. You have unlimited hard drive space, but are limited to only 8 MB of semiconductor (physical) memory. Assume that virtual and physical pages are each 4 KB in size.
A certain sawtooth generator has the following parameter values: Vin: 3v, R: 4.7kohm, C:0.001uf. Determine its peak-to-peak output voltage if the period is 10 us. What is the Vpp
A 250hp, 500v dc shunt motor draws a nominal field current of 5A under rated load. The resistance is 90ohms. Calculate the ohmic value and power of the series resistor needed so that the field current drops to 4.5A
determine the corediameter required for the fiber topermit its operation over the wavelength range 1.48 to 1.60um. calculate the new fiber core diameter to enable single mode transmission at a wave length of 1.30um.
The voltage V across a semi conductor in a computer is given by V= aI+BI^2, where I is the current (in A). If a 24 V battery is conducted across the semi conductor, find the current if a=4 ohms and B= 0.5 ohms/A.
1. A sinusoidal waveform is described by the equation: v(t) = 20V sin(120pit) pi = 3.1416 What is the value of the frequency 2. A sinusoidal waveform is described by the equation
Calculate the unit step response of the DT systems with the following impulse responses: a-) h[k]= u[k+6]- u[k-10] b-) h[k]= 3^k- u[-k]
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