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A factory has an electrical load of 1,800kW at a lagging power factor of 0.6. An additional variable power factor load is to be added to the factory. The new loaf will add 600kW to the real power load of the factory. The power factor of the added load is to be adjusted so that the overall power factor of the factory is 0.96 lagging.a) Specify the reactive power associated with the added load?
b) Does the added load absorb or deliver magnetizing vars?
c) What is the power factor of the additional load?
d) Assume that the rms voltage at the input of the factory is 480 V. What is the rms magnitude of the current into the factory before the variable power factor load is added?
e) What is the rms magnitude of the current into the factory after the variable power factor load has been added?
A 200 g block on a 50 cm long string swings in a circle on a horizontal, frictionless table at 75 rpm. What is the speed of the block What is the tension in the string
A single, common-anode, 7-segment LED is connected to the Arduino Connector J1 through current-limiting resistors. The diagram in Figure 1 shows the mapping of the pins of the connector to the pins of the 7-segment.
Design a circuit that, given a 2-bit value, will light a LED corresponding to that value. One of four LEDs should be lit for each of the four possible input values (binary 0 through 3).
An amplifier operates from -5V and +5V balanced power supplies. It provides a 3.2-Vpeak sine across a 150 ohm load when provided with a 0.2-V peak input from which 2.0mA peak is drawn. The average current in each supply is 20mA.
Show the truth table for the following circuits: a. A 3 input NAND GATE (Inputs are A,B, and C and the output is Q) b. A 3 input odd parity circuit. (Inputs are A,B, and C and the output is Q) c. A two bit adder with inputs (A1,A0 and B1,B0) and outp..
Three amplifiers with power gains of 15, 22, and 7 are cascaded. The input power is 120 µW. What is the output power of the final amplifier stage
a digital signal represented by a binary voltage +5.55 and -4.5V , is transmitted over an AWGN channel with noise standard dev 1.12 V.Compute the volt. f the optimum thresholdwhen the priori probabilities of the binary source
A transducer with a Thevenin equivalent output resistance, RTH =10 k-ohm and a Thevenin equivalent open circuit voltage of V TH = 1 millivolt must be amplif ied to 5 volts. Using an ideal OpAmp, design a non-inverting amplifier circuit to do this ..
A second-order PLL is implemented with a non ideal loop filter: H(s) = (s+a)/(s+b) in which b > 0 is very small. (a) Applying small-signal analysis, determine the transfer function between Oe(s) and Oi(s).
trace how the electrons and holes move through the device under the two different biasing conditions. Explain how these three devices work in terms ofIn a study conducted at the National Institute of Mental Health,
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
A 4-element unform linear array with interelement spacing of λ/2 is operated as a broadside array , find the beamwidth betwen nulls and the side lobe level in dB . find the phasing of the elements in order to rotate the direction
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