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We use the DFT to compute the amplitude spectrum of a sampled data sequence with a sampling rate fs = 2; 000 Hz. It requires the frequency resolution to be less than 0.5 Hz. Determine the number of data points used by the FFT algorithm and actual frequency resolution in Hz, assuming that the data samples are available for selecting the number of data points.
Find the current in a ground loop that is 200 ft long, has a wire resistance of 0.05 ohms/ft, and has a difference of 4 V between grounds.
Identify the intervals of interest for performing the convolution {x[n]*h[n]} on the following LTI system. This experiment requires that you write the summations for each interval of interest, but does not required you to simplify the summations.
Point charges of 5nC and -2nC are located at (2,0,4) and (-3,0,5), respectively. A. Determine the electric field at all points in space. B. Determine the force on a 1nC point charge located at (1,-3,7).
Chopper circuit has the parameters of a source frequenCy of 150 Hz and an on time of 3 ms. vohage of 90 V, chopper When this chopper drives an inductive load of 1.5 0 and 15 mH, determine the average load current.
Suppose a third identical sphere 3 having an insulating handle and initially uncharged, is touched first sphere 1 and then sphere 2 and finally removed back. Find the force between sphere 1 and sphere 2 now.
In a step-down converter, consider all components to be ideal. Let v_0 = V_0 be held constant at 5 V by controlling the switch duty ratio D. Calculate the minimum inductance L required to keep the converter operation
The speed of a 20-hp, 300-V, 1800-rpm separately excited DC motor iscontrolled by a three-phase full converter drive. The field currentis also controlled by a three-phase full converter and is set tomaximum possible value.
Suppose that you wish to offer a voice over IP wireless service. The target packet error rate (or drop rate) is 10^3 and you determine that if the signal is confined to within a coherence band, about 20% of the packets are dropped due to fading.
A potentiometer with a total range of 350° is supplied with a voltage of 12 Vdc. Find the output voltage for an angle of 135°. An absolute optical rotary encoder has five tracks. How many bits is the output
Explain why an instrumentation amplifier has more than one stage? How would you increase the output current of an op-amp?
Two identical 138 kV Y: 13.8 kV DELTA 100 MVA tap changing transformer each with a per unit series impedance of j.1 ohms are operating in parallel and supplying a 180 MVA load at 13.8 kV and .8 lagging pf.
Use the simulation timing diagram to compare the worst case time to do an operation with your adder/subtractor with the worst case using the 74LS283. State which operation takes the longest and list the time required for both devices??
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