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suppose a switching system's operating cost is 50% call setup and 50% usage. Call setup is proportional to arrival rate and usagecost is proportional to traffic intensity. (a) what happens tototal cost if arrival rate doubles, but holding time halves? (b)what happens to total cost if arrival rate halves, but holding time doubles?
The sampled signal is passed through an ideal LPF which rejects all frequencies above 8 kHz and has a gain Ts. Les sR(t) be the output of the LPF. Sketch LT[sR(t)], in which FT[] denotes the Fourier Transform, in frequency domain.
A 480 V, three phase system is supplying a 10kW heater and a 5kVAR cap bank. draw the power triangle and calculate the line current
A coil with an impedence of 64.1 angle 51.4 degrees is connected in series with a resistance 22.5 ohms. The combination is supplied by 120 V source. Determine the coil and resistor voltages and the overall power factor.
What is the maximum symbol rate which can be sent over this link? If a binary line code is used, what is the maximum bit rate? What is the maximum bit rate with 4-ASK symbols?
Consider the financial aspects of the digital thermometer project. The project cost is estimated at $10,000. The total manufacturing cost of the digital thermometer, as called for in the specifications, total $150(that is, $95 parts
A series circuit consisting of a 0.398-henry inductor and a 212-µF capacitor is connected to a 125-volt variable frequency source. At what frequency will the circuit take a lagging current of 2.5 A
Design a sequential circuit which adds two to a binary number in the range 0000 - 1001. The input and output should be serial with the least significant bit first. Find a state table with a minimum number of states.
Consider the following signal w(t) = 4sinc(400*t) a) What is the minimum sampling rate that can be used to obtain samples that completely specify the signal w(t)
If you measured a sinusoidal waveform on both the AC and DC scaleswith the same multimeter, and measured 1.5 volts AC scale and 1.0volts DC scale, what would be the maximum and minimum of the waveform displayed on the oscilloscope
An 80 kHz sinusoidal voltage has zero phase angle and a maximum amplitude of 25 mV. When this voltage is applied across the terminals of a capacitor, the resulting steady state - state current has a maximum amplitude of 628.32 microamps.
Explain the operation of sequential logic devices and evaluate the output waveform in relation to the clock for QA, QB and QC in the subsequent circuit and show the binary sequence represented by these waveforms
A)what is the maximum Doppler for a vehicle speed of 160 km/hr at 900MHz. B)what is the minimum doppler(most negative for this case) C)for this range of Doppler what is the corresponding speed at 1800MHZ
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