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Source configurations can be combined to increase operating and maintenance flexibility. Sketch a hybrid primary-secondary selective system. Describe how the system would operate in the event ofa. loss of one of the sources.b. loss of one of the transformers.
A semiconductor, in thermal equilibrium, has a hole concentration of p0 = 2x10^16 cm^-3. The minority carrier life time = 3x10^-7 s. (Assume, ni = 10^10 cm^-3)
Bob enters a pizza shop and notices there are three different sizes of pizzas available. Sizes are given as the diameter of the pizza in inches. The cost of a pizza is based on the size. Bob would like to know which size of pizza
Calculate the signal to noise ratio given RMS Noise Voltage = 20mV and RMS Signal Voltage = 2.5V Calculate ETotalRMS given e21RMS = 5V and e22RMS = 7V
An optical fiber is to be used to capture the light signal in a particular experiment. If the core of the fiber has an index of 1.46, and the cladding index is 1.457, what is the maximum angle of incidence of light that is accepted by this fiber
It operates at a power factor of 0.85 (lagging) at its rated conditions. Calculate the per-phase current that has to be carried by the cables to the power electronics converter and the step-up transformer located at the base of the tower.
Design an 8th order, type 1, FIR low-pass filter having a cutoff frequency of 8Hz for a signal acquired using 64Hz sampling rate.Use the window method with a hamming window. Note that youdon't need matlab to solve this exercise.
Discuss what is meant by line spectra and what information can be gathered from a line spectrum plot. Discuss the similarities and differences between the Fourier Transform and the Laplace Transform.
What annual revenue is required to cover fixed costs? What will be the annual variable costs? How much will electricity cost per kWh?
A discrete-time LTI system has the impulse response h[n]. Use linearity and time invariance to determine the system output y[n] if the input is h[n]={-2:n=-1, 3:n=0, 2:n=3, -4:n=5}
A balanced Y-connected three-phase motor uses 20 kW of power at 0.81 pf lagging when connected to 220 V lines. What is the line current. What is the current in one phase of a delta-connected generator.
The machine takes three inputs in addition to the clock: countup, countdown, reset. The count advances by 1 when countup=1, decreases by 1 when countdown=1, and goes to 0 when reset=1. The output o1=1 when the count reaches 3.
A circuit must detect a 01 sequence. The sequence sets z = 1, which is reset only by a 00 sequence. For all other cases, z = 0. For example, for input sequence as follows, the corresponding output sequence would be: x = 010100100
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