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If a zener diode has a breakdown voltage of 8[V], find the dielectric strength of the semiconducting material if it is assumed that the entire voltage is dropped across the pn junction,which has wid
A material has a dielectric constant of εr=3.0 andhas an atomic density of 1028 atoms per cubic meter. If only two electrons in the outer orbital shell will distort with anapplied E-field, a
In a silicon bar uniformly dopes with 10^16 phosphorus atoms per cubic cm and 5*10^14 boron atoms per cubic cm. Calculate the mobile electron and hole concentrations for this bar.
If you photocopy a document, and then make a photocopy of the photocopy, and then photocopy the already once photocopied copy, and then repeat this process for a while, what happens to the image qua
A zero mean gaussian random vector X=(X1, X2)T has a covariance matrix given by K=[ 3 -1 -1 3 ] Find a transformation matrix A so that the vector Y=AX is a gaussian random vector with uncorrelated (
The forward transmittances of unity feedback tracking systemsare given below. For each, find the type number of the system, the steady state error coefficients k0,k1, and k2 and the steady state err
An infinitely long coaxial capacitor with inner conductor radius aand outer radius b has voltage V0 on the inner conductorand V = 0 on the outer conductor. Find the electric field inthe region betwe
An analog signal consists of three sinusoids with frequencies 3.1 KHz, 4.82 KHz, and 5.64 KHz. The signal is sampled at asampling rate of 32 KHz producing the Discrete signal x(n).
An LTI (linear, time invariant) instrument has the following impulse response: h(t)=100e -100t +100e -50tsin(50√(3)*t)/√(3) -100e -50tcos(50√(3)*t) At time zero the system is excited
At time t = 0, the voltage across a 100-pF capacitor is -5 V. the current through the capacitor is 10[u(t) - u(t -10^-4)] μA. what is the voltage across the capacitor for t>0.
A generator uses a coil that has 110 turns and a 0.475 T magnetic field. The frequency of this generator is 43.0 Hz, and its emf has an rms value of 230 V. Assuming that each turn of the coil is a s
At a substation the primary of a step-down transformer (turns ratio = 1:26) receives the voltage from the high-voltage transmission line. Because of your usage, a current of 48.0 mA exists in the pr
with karnaugh maps, find a minimal sum-of-products expression for each of the following logic functions. Indicate thedistinguished 1-cells in each map a) F = ΣA,B,C,D (1,4, 5, 6,11, 12,13,14,15
The delay is an integral multiple of slot time. The numberof slot times to delay before the nth retransmission attempt ischosen as a uniformly distributed random integer r in the range0<r<2^k,
our boss asks you to contruct a temperature sensorfor measuring the ambient temp outside (-30degreee celcius<= T<= 40 deg. c). You decide to base operation on the change inresistance accociate
Construct a plot ofsilicon resistivity versus impurity concentration at T = 300K.Include curves for both n-type and p-type silicon over the range of10^13/cm^3 <=NA or ND <= 10^20/cm^3.
∂Δnp/∂t = DN∂2Δnp/∂x^2 -Δnp/τn + GL is known as the minority carrier diffusion equation for electrons. (a) Why is it called a diffusion equation (b) Why is it
(a) An average hole velocity of 10^3 cm/sec results when 2 v is appliedaccross a 1 cm-long semiconductor bar. What is the mobilityof the bar (b) name the two dominant carrier scattering mechanisms i
Determine the EA or offset, if applicable from the addressing modes(i) Immediate, (ii) Direct, (iii) Register using BX, (iv) registerindirect using BX, (v) Register relative using BX, (vi) Basedinde
A 400-kV transmission line has a hot-weather power rating of1400 MVA. If the transmission line is operating in cold weather, itis rated for 2200 MVA (at 400 kV). The transmission line is undercold w
For a coaxial line with inner conductor radius a and outerconductor radius b, V = V0 at ρ = a and V = 0 atρ = b. Find the potential distribution by solving Laplace'sequation. Also find capac
a) what is the order of this approximation b) Suppose |f(x) - g(x)| < = for all x show that anappropriate of h ( in terms of ) lead to |f'(x)- Eh g(x)| <O = (?μ) where μ>0 is as
Calculate the percentage of electricity generation by these fuel-cell systems compared to the annual electricity generation in the U.S. of 3.8x109 MW-hrs
given appositive number α, determine the constants A,B,C such that the iteration converges locally to 1/α with orderp= 3. (this will give a cubically convergent method for computing the
Select two different applications that use electrical wiring.