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A 3-phase power system consists of a wye-connected generatorconnected to the following loads, which are in parallel, through atransmission line. Load#1: Wye-connected load that consumes a total3-pha
A 9-V flashlight battery has a rating of 1.8 kWh. If the bulb draws a current of 100mA when lit: determine the following: (a) For how long will the flash light provide illumination
A unit of power often used for electric motors is the horse power (hp), which equals 746W. A small electric car is equipped with a 40-hp electric motor. How much energy does the motor deliver in one
A DC voltage of 10 V is applied across a parallel platecapacitor with a 2 cm separation between the plates. Knowing that the potential field distribution inside the capacitor is linear, plot the pot
The voltage across an element is 12e to the power of -2t . The current entering the positive terminal of the element is 2e to thepower of -2t . Find the energy absorbed by the element in 1.5 s start
Sketch basic characteristics of an-channel J-FET (ID vs. VDS andID vs. VGS) and explain why it may be used asa constant current source and a voltage controlled resistor.Indicate the parts of the cha
A double-balanced modulator is rated to accept signals up to+7dBm. What is the signal level expressed in: (a) watts, (b) volts rms Assume that all impedances are 50Ω and are matched.
a lightning bolt carrying 20000 A lasts for 20 microseconds. if the lightning strikes a tractor, determine the charge on the tractor if the tires are assumed to be perfect insulators.
Calculate the Thevenin equivalent voltage (in Volt) for a power source with the following characteristics: open circuit voltage Voc = 12 V and sort circuit current Isc = 5 mA.
The tolerance on resistors is + 2σ by convention, i.e.,approximately 95% confidence level. With 95% confidence, what is the range of resistance that you would expect to measure experimentally
design an inverting amplifier with an input resistance of 20kΩand a gain of-10.include a resistor to compensate for bias current.design a summing amplifier such that Vo=-(10V1+2V2+0.5V3).
Design a state machine that repeatedly produces through the following sequence of outputs 0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 0, 1,2, 3, 2, 1. Note the output is not necessarly the current state ofthe mac
Convert the decimal numbers +37 and +17 to 8-bit hexadecimal numbers, using the signed 2's complement representation. Then perform the following operations: (a) (+37) + (-17), (b) (-37) + (+17), (c)
2 single-phase AC motors connected in parallel are fed from a220 volt source. The motors have the following ratings: Motor #1: 220V, POUT = 50 hp, Efficiency = 82%, PF =0.82 lagging Motor #2: 220V, PO
Using 2 wattmeters as a method of power measurement,wattmeter #1 reads 400W and wattmeter #2 reads 300W. The load isknown to be inductive and fed from a 208/120V grounded-wye 3-phase4-wire system. D
A single phase 4,800<0(degrees) V bus is connected to a singlephase 100-kW motor operating at a lagging power factor of 0.8, alighting load of 200-kW operating at a unity power factor, andstatic
A 10kW 220-V single-phase motor is operating at 0.7 lagging power factor. Find the value of the capacitor that needs to be connected in parallel with the motor , if the power factor is to be improve
How would you implement in the assembler a logical-shift-left(LSL) pseudo-operation for a machine that didn.t have this particular instruction Be sure your LSL instruction can shift up to W-bits whe
Design the simplest circuit that has three inputs x1,x2, x3, which produces an output value of 1whenever two or more of the input variables have the value 1;otherwise, the output has to be 0.
a certian voltage is +10V for 20ms and -10 V for the succeding 20msand continues osciallating back and forth between these two valuesat 20ms intervals. The voltage is present across a 50 ohmresistor
a fuse must be selected for a certain application. you may choosefrom fuses rated to "blow" when the current exceeds 1.5A, 3A, 4.5A,OR 5A. if the supply voltage is 110 V and the maximum allowable po
Consider a path with discrete points A,B,C,D and E. It takes 2 pJto move an electron from A to B or from B to C. It takes 3 pJto move a proton from C to D. It takes no energy to move an electron fro
a new type of battery delivers 10W of power for 8hr without voltageor current fluctuation. after 8 hr without voltage or current fluctuation. After 8 hr however the power output drops linearly from1
a 4 bit binary number is represented as A3,A2,A1,A0 whereA3,A2,A1 and A0 represent the individual bits where A0 is LSB. design a logic circuits that will produce HIGH output whenever the three binar
A balanced, 3-phase, 3-wire, 60Hz, wye-connected source isserving a combination of balanced loads in various configurations.Measurement of the source line voltage indicates 480 voltsline-to-line. Me