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Consider the power system shown in Fig. 11.80. Calculate:
(A) The Total Complex Power
(B) The Power Factor
(C) The Capacitance Necessary To Establish A Unity Power Factor
A Fabry-Perot interferometer is to be used to resolve the mode structure of a He-Ne laser operating at 632.8 nm. The frequency separation between the modes is 150 MHz. The plates are separated by an air gap and have a reflectance of r^2=0.999.
A certain element has a phasor voltage of V=86.6+j50 V and the current I= -2.5+j4.33 A. The angular frquency is 200rad/s. determine the value of C to two significant figures with appropriate units.
What would the effect of boundaries be on the diffusivity of a substance (e.g., if you have diffusion of a substance in a pipe, what would the effect of the pipe's walls be on the diffusivity
a)How many holes are in the valence band b)If electrons are constantly seeking lower energies and recombining with holes then how can the number of 10billion remain constant.
Thesignal x(t)=u(t-1)-u(t-3) is the input to an LTI systemwith the impulse response h(t)=u(t-5)-u(t-8)The system is initially atrest. (a)Compute the output y(t) of this system using convolution. Make asketch of y(t)
A voltage of 100 VDC is applied across a resistor, and the temperature of the resistor is measured. Which of the voltage waveforms shown in the figure, when applied across the resistor, would produce that same temperature - What is the value of t..
Determine the series resistance needed to convert a galvanometer to a voltmeter reading 15 V on full scale deflection if a current of 2.5mA causes full scale deflection and the resistance of the coil is 10.
1- Draw a circuit whose output goes to + V sat . When the input signal is below -4V. the output should be -V sat, when the input is above - 4V 2- Design a - 90 phase shift circuit at 1590 Hz , Then for your design calculate 0 at 15 Hz, & 15 KHz
Describe the Step-by-step procedure for steady-state analysis of circuits with sinusoidal sources.What condition must be true of the sources.
determine the sum of the incremental cash flows for Alternative B-Alternative A First cost $: A=-50,000 B=-85,000 Annual operating cost/year: A=-8,600 B=-2,000 annual revenue/year: A=22,000 B=45,000 salvage value: A=3,000 B=8,000
A charge Q is uniformly distributed over the wall of a circular tube of radius b and height h. Determine V and E on its axis at a point outside the box.
Due to its wider bandgap than silicon, a GaAs red light emitting diode (LED) typically has a turn-on voltage of 1.6 V. Assuming the maximum allowable current through the LED is 16.7 mA,
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