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Suppose you have an Analog-to-Digital Converter (or ADC) with 12 bits of precision, and the manufacturer claims it has the transfer function x = floor(4096×v/5 ) for input voltage vΣ [0, 4.9999] (where x is the digitized result you get). The resulting x can be interpretedas representing the input voltage using the relationship v = 5×x/4096 (here, vis a random variable - don't confuse it with the original input voltage v!)We can then create a new random variable, e = v - v, which represents the digitization error for any reading.To simplify for you, you'll get integers n, from n = 0, 1, 2, ..., 4095, and these integers will represent voltages. (n will represent the voltage n × ρ, where ρ= 54096 ).(a) Assume that the random variable v - v is uniformly distributed on the range [0, 5 4096 ]. What are the worst-case and the average errors if you make a single reading?(b) Suppose we add a small amount of noise, uniformly distributed on an interval ρ, ρ], to the (non-random) input voltage v, which we'll assume happens to take a value such that the the error is the worst-case value. Approximately how many samples must we use so that the average of them approximates v to within plus or minus .0001?
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..
a) the synchronous generator has a unique ability whihc places it at the top of the heap of all machines that might be used for generation of electric power. This unique capability is what allows the business of electric dispatch to even occur.
If a 250 us period clock signal must be transmitted with a 10 kHz data signal on the same link, then what is the minimum bandwidth necessary to support both signals.
The motor gives the output torque of 20 N-m at the rated speed. The mechanical losses are equal to 1kW. The stator losses are 1.5kW. Find the input current of the motor, given that the power factor is 0.8
In a bus 1-persistence CSMA/CD with Tp=50us and Tfr=120us, there are two stations, A and B. Both stations start sending frames to each other at the same time. Since the frames collide, each station tries to retransmit.
Develop the pseudo-code below for a program that will retrieve 2 bytes (NUM1 and NUM2) from memory, determine which is closest to the numeric value 50, and indicate the result by setting a variable named "CLOSEST" to 1 (if 1st byte is closest) or ..
A THREE PHASE, Y-CONNECTED, 60Hz, TWO POLES SYNCHRONOUS MACHINE HAS A STATOR WITH 5000 TURNS OF WIRE PER PHASE.WHAT ROTOR FLUX WOULD BE REQUIRED TO PRODUCE A TERMINAL (LINE-TO-LINE) VOLTAGE OF 13.2kV
A current of 5A flows through a resistor connected in series with choke coil. It is supplied with 250 V , 50Hz supply . If potential difference across resistor is 125 and across choke coil is 200 volt .
Determine the position x and the tension in the cord that is required for equilibrium. The cord passes through the smooth ring at B and has an unstretched length of 6ft and stiffness of k = 50lb/ft.
Three hard-drawn copper conductors with a 1 inch diameter and 1 m spacing in a triangular configuration. (Note that 1 mile = 1.609 km). 1. Calculate the dc resistance in ohms per mile ( p = 1.77 × 10-8-m).
Computer the following assuming each number is a two's complement number and indicate the inputs and final result in decimal. Also, indicate if the number overflows. a. 01 + 1011 b. 11 + 01010111 c. 1101 + 110 d. 01 + 10 e. 111 + 111111
given a "black box" with two terminals. You play around with the box for awhileand make the following observations: (i) The output voltage from the box is sinusoidal. (ii) The peak magnitude of the open-circuit voltage at the terminals is 5 V.
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