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The bottom of the conduction band at one end of a silicon resistor is at the same energy level as the top of the valence band at the other end. What current flows through the resistor if the resistance is 1.12 kOhms?
the operation of an induction machine here used as an asynchronous generator her connected to a 3 phase electric system. a) What does asychronous mean in this context b) How is it possible to improve the operation of this generator on the system
Design and implement an algorithm that determines whether or not a given array of elements, list1, is completely contained within another given array of elements, list2. Consider two different scenarios: 1) both arrays are sorted; 2) both arrays a..
What are the impedances of an inductor and a capacitor (of any value) at a frequency of 0 Hz (DC) and at infinite frequency. Once we know what they are , how can this information help us in analyzing a circuit.
The exponential Fourier series coecients for a signal x(t) are: ak= { 1.57 when k=0, 0 when k is even and k doesnt equal 0, ((-1)(k-1)/2)/k when k is odd} Determine the following: (a) Plot the spectrum of the Fourier series.
a dsp system is given with the following specifications: design requirements: sampling rate 20,000 Hz Maximum allowable gain variation from 0 to 4,000 Hz = 2dB 40dB rejection at the frequency of 16000 Hz
The total charge that has accumulated on the positive plate of a capacitor varies with time. The charge follows q=At^2 for the first 4s. a) Find the value of current at t=2,6,9,12,16 s. b) Sketch the current i(t) as a function of time
A flashlight battery with a voltage of 1.2 would be considered. During servicing, Ni-Cad batteries are normally overcharged to of the rated amp-hour capacity. What is done in an airplane in flight to mitigate this complication
A thermometer, initially at a temperature of 75 degrees Fahrenheit is suddenly immersed into a tank of water with a temperature of 180 degrees Fahrenheit. The time constant of the thermometer is 4 s.
The above transformer is to be connected as an auto transformer to supply a load at 120 V from 210 V source. What kVA load can be supplied without exceeding the current rating of the windings
There are two four bit messages, 1010 and 1110. The first one is appended with an odd parity bit, the second one with an even parity bit. What are the values of the parity bits for the first and second messages respectively.
Derive the transmission and reflection coefficients for the case of tunneling through a square potential barrier with 0
An Ideal Low Pass Filter: The impulse response of an ideal low-pass filter is h(t) = sin(t)/t (or the sinc signal). (a) Given that the impulse response is the response of the system to an input x(t) = f(t)with zero initial conditions
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