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If the voltage drops by 20 % , what will be the current, assuming nothing else changes If the resistance of the device were reduced by 20 % , what current would be drawn at 240 V
The message waveform uses a root-raised-cosine line code with α=1. The bandpass filter in the receiver front end has a rectangular frequency response with a bandwidth equal to the absolute ban
derive and determine the transmission reflection coefficients for a particle traveling with an energy (a) 2ev and (b) 20ev. If the block is given infinite potential and the length is expanded to 1m,
(a) determine the contact resistor that can go on the base if the length of the contact is 10 * Wb. (b) Plot the change in conductance in relation to varying the doping from 1014/cm3 to 1018/cm3 at
Calculate the potential variation V(x) , electric field and the depletion layer width for a graded p-n junction, that is one in which the doping level varies linearly with position: ND - NA = K *x.
A sample of silicon contains 1x1018/cm3 donors. Below what temperature does it cease to show intrinsic properties if the band gap is 1.12ev and the intrinsic carrier concentration is 2x1016/cm3 at 3
write an ABEL, VHDL, or Verilog Program to design a clocked synchronous state machine with 2 inputs, X and Y and one output, Z. The output should be 1 if the number of 1 inputs on X and Y, since res
Determine the max rms voltage that can be applied to the high side of the transformer without exceeding the rated_flux_density in the core if transformer is supplied by frequency of 50 Hz.
Consider the design of an optimal linear filter for a zero mean WSS random sequence whereby the sample values during the observation window are given by: (-1,0,1,2,3,3,2,1,2,3,1,-1,-2,1,0) 1. Obtain
The pulse generator circuit accepts a 16 Hz pulse and converts the signal to a 1 Hz pulse, that is, a clock signal once every second. This signal is then used to drive a counter that controls how th
Derive a sequential circuit with one input (w) and one output (z) using D flip flops that detects an input sequence of 101. Use a Moore model, and show all of your work including the state machine,
Overlapping sequences should also be detected (ie 00->11->00->11->00 should output 0 0 0 1 0 1). Use a Moore model, and show all of your work including the state machine, state table, s
The armature, frame, and core of a 12-V DC control relay are made of sheet steel. The average length of the magnetic circuit is 12 cm when the relay is energized, and the average cross section of th
A combinational circuit is defined by the following three Boolean functions. Design the circuit with a decoder and external gates. f = x y z + xz g = x y z + xy h = x yz + xy
Use Mat lab to charge neutrality equation in order to plot the Fermi level as a function of doping vs. temperature for Si, GaAs, SiC, and GaN. Using Phosphorous as a donor dopant at 1e18, 1e16, 1e14
How much electrical charge is needed to raise an isolated metal sphere of radius 1.0 m to a potential of 1x10-6 V
An electron is released from rest at the negative plate of a parallel plate capacitor. If the distance between the plates is 5 mm and the potential difference across the plates is 5 V, with what vel
A proton moves around a circular path ( radius = 2.0 mm ) in a uniform .25-T magnetic field. what total distance does this proton travel during a 1.0-s time interval ( m= 1.67x10-27 kg = 1.6x10-19 C
What is the magnetic force on a 2.0-m length of ( straight ) wire carrying a current of 30 A in a region where the uniform magnetic field has a magnitude of 55 mT and is directed at an angle of 20o
A continuous-time signal x(t)=cos(2πt) is sampled every T seconds, resulting in a discrete-time signal x[n] = x(nT) . Determine whether the sampled signal is periodic and if the signal is periodi
Determine whether the discrete signals below are periodic. If the signal is periodic, determine the number of samples per period. (a) x[n]=cos(πn) (b) x[n]= -3sin(.01πn) (c) x[n]= 1+cos((
For each of the discrete signals below, determine mathematically whether the signal is even, odd, or neither. (a) x[n]=6u[n-3] (b) x[n]=-n (c) x[n]=sin(n-(pi/6))
When RESET is negated, it should mov e to next-numbered state only if ENABLE is asserted. However, once it reaches state S7, it should stay there unless RESET is again asserted. The DONE output shou
Group and phase velocity in uniaxial crystals: a. Derive an expression for the group velocity of the extraordinary wave in a uniaxial crystal as a function of the polar angle of the propagation vec
Suppose a radio frequency signal is sampled at fs = 500 MHz. What frequency bands from 250 MHz to 1000 MHz will alias into the FM band, 88-108 MHz