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Given x(t)=2cos(10pi(t) + pi/6)) a.) Write signals as the real part of the sum if rotating phasors. b) sum of the counter-rotating phasors c.) Plot the single sided amplitude and phase spectra for this signal d.) plot the double-sided amplitude and phase spectra for this signal.
The Russian president and the Chinese counterpart need to come to an agreement by telephone. Neither can speak and understand each other's language. They need to employ translators. Compare this layered communication to OSI layers.
Given a network using slotted Aloha multiple access protocol with N users and each user attempting to access the channel with probability P. It is safe to assume that each user always has a frame of data to send and that it uses access probability
A winding consists of 50 turns of a metallic conductor in a loop square with sides of 0.20 m in length each. The winding has center at the origin with two sides parallel to the axis of x the other two sides parallel to the y-axis
The sampling frequency in a DSP system is fs=8 kHz. Anti-aliasing filter used in the system is the second-order Butterworth filter with cutoff frequency of fc=3.4 kHz. What is the percentage of aliasing level at the frequency f=2.5 kHz
1) For a forwarard converter, derive the minimum value of Vr - as a function of the input voltage Vg, the duty cycle D, and the turns ratio N1/N2 - that will cause the transformer magnetizing current to be reset to zero by the end of the switching..
A president, secretary, and treasurer are to be chosen from a group of 10 senior members of the IEEE student chapter at the Citadel. Assume that each member cannot serve more than one position.
How long will the cassette tape player operate at normal power? A walker's cassette tape player uses 4 AA batteries in series to provide 6V to the player circuit.
A 3.3V, 30 A dc power supply is to be designed with a ripple of less than 2.5%. Assume that a half-wave rectifier circuit (60 Hz) with a capacitor filter is used.
3) What is the RMS voltage of the source in a single loop series circuit if Irms = 1A-30° and Ztotal = 100 65° 4) What is the power dissipated by an electric heater with a resistance of 20? drawing a current waveform of i(t) = 10 sin(60t) Amps
First draw the transmit con-stellation and the receive constellation with ideal phase tracking and sampling. Note:they are obviously the same constellations. Now, assume that receiver synchronization is off by a phase angle.
A current source of value 2cos(2t) A is used to power a string of 2W lightbulbs. If you wanted to replace this current source with a DC one, but have the same power drop, what DC current should you apply (one decimal place needed)
Stepper motors are often used in low-power servomechanisms such as those found in small robots, computer printers, and other precision electro-mechanical machines. Explain why this type of electric motor is more popular than permanent-magnet DC mo..
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