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A transformer is energized through a cable whose inductive reactance is 3Ω. The phase voltage at the source side of the cable is 8kV. When the transformer is switched on (energized), the crest of the inrush current of the transformer can be modeled by an equivalent inductive reactance of 7Ω. Estimate the voltage flicker at the transformer side.
The ATSC broadcast television system used in the US transmits video signals at an average rate of 18.34 Mbps and employs 8-VSB modulation.
A load consists of a resistance R in parallel with a capacitor of reactance X. The load is fed from a single phase supply through a line of impedance 8.4 + j11.2 ohms. The rms voltage at the load terminal is 1200 at 0 degress V rms,
A three phase transmission line has a reactance of 100 ohms per phase. The sender voltage is 100kV and the receiver voltage is also regulated to be 100kV by placing a bank of static capacitors in parallel with the receiver load of 50 MW
If the area of the wire is increased by 2/3 and the length is reduced by the same amount, find the new conductance of the wire if the temperature remains fixed.
A wire is bent in the form of a half loop of radius a=10mm and charged with a line charge density pL=10^-9 C/m. Calculate the field intensity at the center of the loop.
A baseband signal has frequencies from near dc to 4 kHz. Assume that the sampling rate is to be set at a value that will provide a guard band of 5 kHz for recovery. Determine the sampling rate (in kHz).
Those who get less than 4 hours of sleep a night were 73% more likely to be obese than those who get the recommended 7-9 hours of rest, scientists discovered.
Consider the parallel resonant circuit shown in Figure. Determine the L and C values, given R = 1 k Ω, f0 = 10MHz, and B = 500 kHz. If I = 10-3 ∠0°, draw a phasor diagram showing the currents through each of the elements in the circuit at resonanc..
You are hired by a leading credit card company, Ford Chase Bank. One of their directos, Julie Hollas wants you to perform a small calculation for her. A customer wants to charge a Japanese robot to his credit card.
A uniformly doped abrupt pn junction (step junction) diode is fabricated. At room temperature 25% of the total space charge region (depletion region) is in the p-region. The built in potential is also measured to be 0.710V.
Prove that the ratio of depth to width of the strongest beam that can be cut from a circular log of wood having diameter d is 1.414
You are required to determine that this next generation transmission system will require a spectral efficiency of 5 bits/sec per Hertz.
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