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the power deliverd to a three phase Y-connected load is 3kw and the line-line voltage is 380v the load power factor is 0.85 lagging determine the load current and impedance
Draw an equivalent circuit representing each of the following power system components, showing all the circuit parameters in each case: (i) Short transmission line (ii) Medium length transmission line (pi and T circuits) (iii) Synchronous generator
A total charge Q Coulombs is distributed uniformly over the length of a straight segment of length L. Find the absolute potential at a distance h off of the end of the segment. How much work is needed to transport a point charge Q1 from infinity t..
Design an inverting singe stage low pass filter with gain = 40 dB, Rin = 10 kΩ , corner frequency of 50 Hz. Determine the max and min gain and the corne frequency for the component tolerances of 5%/ Plot gain vs frequency (Hz) with frequency on a ..
A wafer 100mm in diameter is mounted in an electron-beam evaporation system in which the spherical radius is 40cm. Use Eq. 6.7 to estimate the worst-case varation in film thickness between the center and edges
A regenerative gas turbine has compressor and turbine discharge temperatures of 350K and 700K respectively. Draw and label schematic and T-S diagrams showing the relevant states.
a certain radio frequency generator delivers a power level of 12 dBm. If this signal is amplified, calculate how many decibels of gain is required to produce a power of 20 dBm.
A 5-volt intelligence amplitude causes the frequency to change to ± 25 kHz. What will be the carrier frequency variation corresponding to an intelligence amplitude of 10 volts.
Consider a 4 channel CDM system with the following CHIPS: A: -1 -1 -1 1 B: -1 -1 1 -1 C: -1 1 -1 -1 D: -1 1 1 1 a) Show that each one of those chips is orthogonal to all of the others. b) If the CDM signal 1 -1 -3 1 is received, by all receivers, ..
Explain the relationship between the input and the output ac signals for a n-channel BJT voltage-divider bias. What components/parameters does the voltage gain depends on
Supposed that the terminals are labeled a,b. V(ab) = -15 V, how much energy is exchanged when a positive charge of a 4 C moves through the device from a to b. Is the energy delivered or taken from the device.
A 100-Ohm lossless transmission line is to be matched to a load with impedance ZL = 120 - j80 Ohm using a short-circuited stub. Use the Smith chart to determine: (a) the standing wave ratio, (b) the shortest distance from the load to the location ..
Make a plot of group velocity versus frequency for frequencies from 0 Hz to 500 kHz. Your plot should have 3 different curves for the three modes of propagation. Be sure to identify the modes and all cutoff and resonant frequencies clearly.
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