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A 2.4KV, single-phase circuit suppllies a load of 250KW at a lagging power factor, and the load current is 160A. If it is necessary to improve the power factor, determine the following: (a)The uncorrected poer factor and reactive load. (b)The new corrected power factor after installing a shunt capacitor unit with a rating of 250Kvar.
A DSSS-CDMA signal has a chip sequence that is 10,000 chips in length. The sequence repeats every millisecond. What is the chip rate?
Plot how this absorbed power varies with signal strength W12, and discuss the behavior especially at very small and very large W12. Where does the absorbed power go? -and how does it get there?
design a circuit to sort a product which has 2 different color in two diffrenet boxes for example red and green apples no any microcontroller or microprossser are allowed. which color sensor is the best to have 5 volt output so a solenoid may work..
A series-resonant RLC circuit has R = 80 (ohms), L=25mh, and C=10pF. A) Sketch and label the circuit. B) Find fo, the resonant frequency. C) At what frequency is impedance a minimum D) What is the magnitude of the impedance at this frequency
The amplifier is connected to the handset antenna which has an impedance of 35 + j10 at one unspecified operating frequency. Find the inductive reactance and capacitive reactance needed to match the transmitter output to the antenna
The energy (power) in Watts in an electrical circuit is described by P = VI, where V is volts and I is current
With V=100V, the instantaneous power into a network N has a maximum value 1500 W and a minimum value ?247 W. (1) Find a possible series RL circuit equivalent to N. (2) Find S=P+jQ into N.
In a long cilindric wire with a radius of 2 cm, a corrent with 80A goes thorugh it. What is the magnetic energy per unit of wire lenght?
In a certain communications system a resonant-tuned circuit (tuned at 1200 kHz with Bandwidth = 15 kHz) is connected to the output of a non-linear amplifier (mixer). Find the frequency components at the output of the resonant-tuned circuit
With regard to assembly language and the HCS12: What is the instruction to initialize the SP register Why do we initialize that register What is the reason we initialize it with the value $4000 for this microcontroller
when the line was open-circuited, the measurement yielded an input impedance equivalent to a capacitor with capacitance of 40 pF. Find Zo of line, the phase velocity, and the relative permittivity of the insulating material.
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.
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