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Two-wattmeter method is used to measure the power absorbed by a 3-phase induction motor.the wattmeter readings are 12.5kw and 4.8 kw.
Find:
i)the power absorbed by the machineii)load power factoriii)reactive power taken by the load.
factory worker wages according to data released by city chamber of commerce the weekly wages of factory workers are
A certain appliance has a potential difference of 100volts while getting a current of 1.5 amperes. Calculate the rate at which energy is changing in this appliance.
Calculate the maximum power that can be sent through an a=2cm , b=1cm air-filled waveguide at 12GHz such that dielectric breakdown does not occur. Assume that the dielectric strength of air at atmospheric pressure is 3x10^6 [V/m]
write a mc6812 assembly language program to find the largest number in an array of ten 8-bit numbers. the array is
The power transfer in a transmission line is governed by the equation P = VS * VR * sin\(\delta\)/X line. Basedon this equation what is the maximum power transfer that can be achieved, and what is its value if VS =VR = 1.0p.u
Determine whether the discrete signals below are periodic. If the signal is periodic, determine the number of samples per period. (a) x[n]=cos(πn) (b) x[n]= -3sin(.01πn) (c) x[n]= 1+cos((πn)/2)
two fair dice are tossed until 3 is hit (i.e., the total number of dots is 3) Determine the average (i.e., expected) number of tosses required to hit a sum of 3
A factory is to be supplied with 408Y/277 3 phase, 4 wire electrical service. The total estimated single-phase load is 25 kW, at .9 lagging power factor. The total estimated three-phase load is 250 kW at .85 lagging power factor.
An air-standard Otto cycle has a compression ration of 9. At the beggining of compression, p1=100 kPa and T1= 300K. The heat addition per unit mass of air is 1350kJ/Kg. Determine. a) the net work, in kJ of air. b) the thermal efficiency of the cyc..
Calculate the energy stored by a 1 μF capacitor with 200V applied across its terminals. Determine the magnitude of net charge stored on each plate and the total net charge on both plates.
Derive a hazard-free realization (and show that it is hazard-free), of the function AC+BCD+A'B'D' using only 2-input NAND gates, assume inputs are available uncomplemented and complemented.
An alarm is powered by 120 VAC, and the on/off state of the alarm is controlled by an EM relay. Design the interface between a computer output port and the EM relay. The dropout voltage is 3.5 V, and the coil current needs at least 100 mA.
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