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A signal, bandlimited to 1Khz, is sampled by multiplying it with a rectangular pulse train with repetition rate4KHz and pulse width 50 μs. Can the original signal berecovered without distortion, and if so, how?
A 15hp (output power), 208V, three phase, six pole, y-connected induction motor has the following parameters: R1 = 0.1 ohm R'2= 0.1 ohm Xeq = 0.5 ohm A.) A fan type load is connected to the motor. The slip of the motor in this case is 2%.
The average power is not necessarily equal to the average current times the average voltage. To show this, find a voltage waveform and current waveform where each has a zero average value but their product has a non-zero value.
A) the required step-up voltage ratio for satisfactory performance. B) the voltage ratio of a standard buck-boost transformer that most closely meets the requirements of the load. C) the voltage at the load with the buck-boost transformer installed.
A central air conditioner in a typical American home operates on a 220-V circuit and draws about 15 A of current.a. Determine the power rating of such an air conditioner. b. Determine the energy consumed (in kW*hr) if operated for 8 hours per day.
Cars arrive at a toll plaza at the rate of 60 cars per hour. There are four booths, each capable of servicing 30 car per hour. Assume a Poisson distribution for arrivals and an exponential distribution for service time.
A 1.2 µF capacitor is initially charged to 50V. How much energy is stored in the capacitor. What will be the voltage on the capacitor after it has been discharged by a 10 µA current for two seconds.
Perform the calculation from t = 0 to 20 s with step size of 1 s. Use an initial condition that the parachutist has an upward velocity of 20 m/s at t = 0. At t = 10 s, assume that the chute is instantaneously deployed so that the drag coefficient ..
A power amplifier has a gain of 20 dB and an input level of 2 volts. Assuming that the input and output impedances are the same, what is the voltage level at the amplifier output
Design a three-bit counter-like circuit controlled by the input w. If w=0, then the counter subtracts 1 from its contents (acting like a normal down-counter). If w=1, then the counter adds 2 to its contents, wrapping around if the count has to bec..
A 10 kVA transformer has an iron loss of 250 watts and a half-load copper loss of 80 watts. Determine the full-load efficiency at 0.8 power factor.
Binary symmetric channel, Assume that we are transmitting binary digits over a binary symmetric channel. Let p(x=0)=p(x=1)=0.5.
The maximum decoded voltage at the receiver is ±2.56 V. If a minumum dynamic range of 46 dB is required, for an arbitrary analog signal, calculate the minimum sample rate, the minimum number of bits used in the PCM code, and the resolution.
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