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What does a small delay spread indicate about thecharacteristics of a fading channel? If delay spread is 1microsecond, will two different frequencies that are 5 MHz apartexperience correlated fading?
How can you compensate for the impact of the Doppler Effect ina cellular system? Explain.
If a system has a unit-impulse-response of h(t) = 100t * e^(-20t) u(t) , where u(t) is the standard unit step function, then determine the transfer function H(f) for the system. What type of filter is this system (high-pass, low-pass, band-pass, ..
A stun gun or TASER is designed to put out a few seconds worth of electric pulses that impress a voltage of about 1200 V across the human body. This results in an average current of approximately 3 mA into a human body.
Design an ac-dc voltage converter based on half-wave rectification and filtering. The requirements are: 1. Choose the values of the load resistor R and the capacitor C so that the converter will have a ripple factor of 10%
A material is found to have a tenth-thickness of 2.3 cm for 1.25-MeV gamma rays. (a) What is the linear attenuation coefficient for this material (b) What is the half-thickness (c) What is the mean-free-path length for 1.25 MeV photons in this materi..
The Integrator and Differentiator appear to behave like analog filters. What kind of filters are they, how do they behave with low and high frequencies
Determine the required-size THW copper conductor and overcurrent device rating required for a dedicated feeder supplying a 250 A noncontinuous linear load. Assume an ambient temperature of 30°C
Capacity, Data and Transfer Rates, Access Time of Disk Drive, A hard disk drive has 10 disks and 18 surfaces available for recording. Each surface is composed of 200 concentric tracks and the disks rotate at 7200 r.p.m.
A capacitance C=35 uF is in parallel with a certain element. Identify the element, given that the voltage and total current are v=150sin3000t(V) and i of tau=16.5sin3000t+72.4 degrees (A)
Given an ideal op amp to implement designs for the following closed-loop gains, what values of resistors (R1,R2) should be used. Where possible, use at least one 10-kohm resistor as the smallest resistor in your design.
A control system is needed to control a small shopping center parking lot lighting system and the exterior lighting for the building. The design specifications require that the parking lot lighting and the exterior lighting turn on at dusk automat..
However, the pump requires 60 W of parasitic power to operate continuously. Is installation of the pump justified. Explain. At what value of parasitic power does the addition of the pump become unjustified.
An amplifier with 40 dB of small-signal open-circuit voltagegain, an input resistance of 1M-ohm ,and an output resistance10-ohm drives a load of 100-ohm .What voltage and power gains(expressed in dB) would you expect with the load connected
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