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At room temperature in a cubic centimeter of intrinsic siliconthere will be about 10 billion electrons in the conduction banda)How many holes are in the valence bandb)If electrons are constantly seeking lower energies and recombining with holes then how can the number of 10billion remain constant.
A magnetic circuit constructed of sheet steel has an average length of 1.3 m and a cross sectional area of 0.024msq. a 50 turn coil wound on the ring has a resistance of .82ohms and draws 2a from a dc supply.
Determine the conductor size for each motor tap, the motor controller size, overload rating, motor and controller disconnect rating, time-delay fuse rating, and motor branch circuit conductor size.
A coil made of 150 turns of copper wire wounded ona cylindrical coil . If that means radius of the turns in 6.5mm and the diameter of the wire is 0.4mm, calculate the resistance of the coil.
The discussion must address phase angle relationships of current and voltage. The answer must include the effect of source frequency on the voltage drolps across the resistor and the inductor at very loave and very high frequency values.
(a) Write a function that accepts as input arguments a vector x and two scalars m and s and plots the function g(x) = [1/(s*sqrt(2*pi))]*exp[(1/2)*((x-m)/s))^2] (b) Using the above function, plot y(x) for a vector x -5 to 5, m = 0 and s = 1
A system samples a sinusoid of frequency 480 Hz at a rate of 100 Hz and writes the sampled signal to its output without further modification. Determine the frequency that the sampling system will generate in its output.
Store the arrival times in memory locations starting from $1000.(Do this is in C. Store the results in an array and don't worry about the speci c location of the results.)
A light source generates 10^17 electron hole pairs per cm^3 persecond in an n-type sample doped ND = 10^16 cm^-3 and the average minority carrier lifetime is 10^-5 seconds. Is this Low level injection.
Design a series resonant circuit to have a bandwidth of 400 Hz using a coil with a Ql of 20 and a resistance of 2-ohm. Find the values of L and C and the cutoff frequencies
A transmission line with no loss, with Z0= 60 ohms, is operated at 60MHz. The velocity on the line is c. The line is soldered to a ground connection at z=0. Find the input impedance into this line at z= -1.25 meters
Transfer function in s t = [0-2*Ts : Ts : Tmax] ; Find the actual solution using the inverse laplace transform syms ycont ycont = ilaplace(Gs,t) Sampling times of 0.01, and simulation runs for 10 seconds
Use a K-Map to design a circuit that will accept 5-bit input, and output the value left-shifted by 1. For example, if the input is 10101, the output is 01010. Design a circuit that implements this function. Write the VHDL code.
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