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A telephone line will be used to carry measurement data as a frequency-modulated signal from 5 to 6 kHz. The line is shared with voice data below 500 Hz, and switching noise occurs above 500 kHz.
Design a band-pass RC filter that reduces the voice by 80% and the switching by 90%. Use a resistance ratio of . What is the effect on the passband frequencies?
A small gasoline engine can put out 24,000 N-m/min of mechanical power. The engine is used to drive an electrical generator that is 70 percent efficient. 1 N-m = 2.78 X 10-4W-h. Find the output of the generator in Watts.
Three single-phase transformers are connected in a wye/delta configuration. Each single-phase transformer has an identical number of turns in the primary and secondary windings. If a line-to-line voltage of 480 V is applied on the wye windings
Assume that an additional inductance can be inserted in series with the load. Also assume that the converter has no freewheeling diodes. Calculate the added inductance that leads to a conduction period of 180 degrees when alpha = 30 degrees.
What is the smallest number of samples that could be collected in order to know for sure whether or not the 1000Hz component is present? Assume you are using a Rectangular window.
Assume that the Fermi energy level for a particular material is 6.25eV and that the electrons in this material follow the Fermi-Dirac distribution function. Calculate the temperature at which there is a 1% probability that a state 0.30eV
Construct a Karnaugh map for the logic function D= ABC + aBC + ABc + BC a. Find the minimum SOP expression and realize the function, usingAND,OR and NOT gates. b. Find the minimum POS expression and realize the function,using AND,OR and NOT gates.
compute the money saved in one month by using CFL (compact fluorescent light) bulb (18 W) instead of using an incandescent lamp (60 W) if the cost of electricity is $.12 per kWh. Assume lights are used for 10 hours a day. (30 days in the month)
a 50 kHz squarewave is input to the 60 kHz low pass filter. The filter is effective at rejecting frequencies higher than 60 kHz. a. Does it make sense that the output of the filter is a 50 kHz sinewave
Stability of the Runge-Kutta methods. Derive the stability criteria for the second order and fourth-order Runge Kutta methods, applied to ODEs. Consider the model equation dy/dt = λy, and find the criteria for λ such that the methods are stable. R..
The 1 muF capacitor is charged from a 10 V battery via the 1 kOhm resistor. What is the voltage on the capacitor after one second?
Calculate the power lost and the stored electric and magnetic energies, and show that the input impedance can be expressed as in (4.17).
The upper side frequency of an AM signal is 603 KHz. If the carrier frequency is 600 KHz, what is the intelligence frequency
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