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A 4000/2000 V transformer has a total impedance of 60 ohmreffred to the primary side. the primary and secindary has negligible resistance if a transformer supplies a resistive load of 20 ohm, the full load voltage at secondary side will be
Complex Voltage = 10-j20. try to convert it to polar coordinate with my Ti 89 but I keep getting my answers in arc tan.
A signal x(t) is sampled 4 times and the samples are {x[0], x[1], x[2], x[3]}. Its DFT harmonic function is {X[0], X[1], X[2], X[3]}. X[3] can be written as X[3] = a x[0] + b x[1] + c x[2] + d x[3]. What are the values of a,b,c and d
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..
What is the approximate discrete-time equation the models the continuous-time impulse response for fs=1kSa/s and RC=10^-2?How to solve this problem?
A three-point symmetric moving average filter, referred to as a weighted moving average is of the form \(y[n]=b(ax[nu22121]+x[n]+ax[n+1])\) (a) Determine as a function of a and b the frequency response \(H(e^{j\omega})\) of this system.
Design a one bit block that can be cascaded together to generate the final signal. Assume that you are allowed to generate a different block to treat the signed bit. Provide design for the two blocks and the complete circuit.
signals are to be sampled at rates no less than their respective nyquist rates and are to be word-by-word multiplexed . this can be achieved by multiplexing the PAM samples of the four signals and the binary coding the multiplexed samples (as in t..
Given three induction motors, find the real power P, the reactive power Q, and the apparent power S for each motor. Alsofind P, Q, and S for the total motor load. Motor 1: draws an electrical power of 100kw with power factor=.90 lagging.
A container having a volume of 0.2 m3 contains nitrogen at a pressure of 100 kPa and a temperature of 15°C. If 0.2 kg of nitrogen is pumped into this container, calculate the final pressure after the gas has returned to its initial temperature.
A controlled three-phase six-pulse AC/DC converter is supplied with 60 Hz voltage of the line-to-ground RMS value U = 240 V with the output current ideally filtered by an inductor. The maximum DC power of the converter (Pd)max = 50 kW.
A pacemaker is programmed to deliver pulses a certain times every minute for a patient with heart block. A 0.5µF capacitor controls the pulse discharges through a 2M resistor. One pulse is delivered every time the fully charged capacitor loses 50%
The current in a single-loop circuit is 5.0 A. When an additional resistance of 2.0 O is inserted in series, the current drops to 4.0 A. What was the resistance in the original circuit
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