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For a speech signal, if the ratio of the RMS value over the absolute maximum value of the signal is given, that is, ¼ 0:25, and the ADC bipolar quantizer uses 6 bits, determine
a. The number of quantization levels;
b. The quantization step size or resolution, ?, if the signal range is 5 volts;
c. The signal power to quantization noise power ratio.
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
As indicated from the diagram, when LEFT = 1 the lights flash in a pattern LA on; LA and LB on; LA, LB, and LC on;all off; and then the sequence repeats. When RIGHT = 1, the lightsequence is similar. If a switch fromt LEFT to RIGHT (or viceversa) ..
but the K input of the second JK flip flop depends on the negated output of the first JK flip flop and x AND together. How to trace that when both JK flip flops depend on input from the other one
A wind speed sensor generates an output voltage that ranges between 10 to 55 mV when the wind speed varies from 0 to 120Km/Hr.The output of the sensor is connected to an Analog to Digital Converter (ADC) through a signal conditioning circuit.
Calculate the per unit impedance of the transformer using base values of 1 MVA and 400 V. (and .)
Assuming that a 12-bit ADC channel accept analog input ranges from 0 to 20 volts, determine the following a) number of quantization levels b) step size of the quantizer or resolution
suppose that data are stored on a 1.4-mbyte floppy diskettes that weight 30 g each. suppose that an airliner carries
You are required to determine that this next generation transmission system will require a spectral efficiency of 5 bits/sec per Hertz.
The samples are binary PCM encoded into n bits whichare transmitted using two waveforms S1 (t)=1.414 sin(w1t) and S2(t)=1.414 sin(w1t) + 1.414 cos(w1t) where t is between 0 and Tb,and the a priory probability of S1 is p(s1) = 0.4.
With a 500hp shunt wound DC motor, at 1800rpm, 500Vdc, FLA is 800Adc, Ra is 0.025 and Rf is 400. What would Va need to be if you wanted the motor to operate at 1000rpm at rated torque. Keeping the field current constant.
Show how a switch and resistor can be used to create a logic level 1 or 0 for a digital input circuit. Obtain a data sheet for a Passive Infra Red Detector and show how it can be configured to provide a logic level 1 when it detects the presence of a..
An electronic circuit board with lambda(t) = 0.00021 h^-1 is replaced on failure. What is the probability that the third failure will occur by 10000h ( hint: if there were 4 0r more failures by 10000h, that also means there were 3 failures by 1000..
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