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A Si bar is 0.25 cm long and 500 ?m2 in cross-sectional area. It is grounded at x=0 and biased at +20V at x=0.25 cm. Find the resistance and the current at 300K (a) when the Si bar is doped with 2×1017 cm-3 arsenic and (b) when the Si bar is doped both with 2×1017 cm-3 gallium and 1×1017 arsenic. (c) How long does it take for an average hole to drift through the bar in both cases?
Determine the peak-to-peak current ripple in the output inductor for a forward converter and determine the output voltage ripple of the converter . We know the following parameters: duty cycle d, input voltage Vin, turn ratio: N1/N2
Determining how to use the function fft to find the DFT coefficients X[k] of x[n] in Matlab. Also, how would you plot the magnitude of X[k] in Matlab?
A signal x(t) can be represented as x(t)=xe(t)+xo(t) where xe(t)=(1/2){x(t)+x(-t)} is the even part, and xo(t)=(1/2){x(t)-x(-t)} is the odd part of the signal. Let x(t) be an energy signal with an energy of 20 Joules. Suppose the even part of x(t) is..
Complex Voltage = 10-j20. try to convert it to polar coordinate with my Ti 89 but I keep getting my answers in arc tan.
What is the relation between the conductance and the capacitance of two parallel conductors immersed in a lossy dielectric medium that has permittivity and conductivity?
Baseband digital trnamission and multi level coding, A baseband digital data link transmits polar binary NRZ current pulses at a rate of 1.0 Msps. The link uses ideal RRC filters with roll off factor r = 0.5.
The Hamming distance between two bit strings of the same length is the number of positions in which the strings have different bit values. For example, the Hamming distance between 1110 and 0101 is 3.
Write a MATLAB program to compute the capacity of an AWGNC with a given bandwidth and for equally spaced values of between and including and (in dB).
A simple power system consists of a dc generator connected to a load center via a transmission line. The load power is 100kW. The transmission line is 50km copper wire of 3 cm in diameter. If the voltage at the generator terminals is 400V
A plane circular disk of radius 0.25m rotates at a speed of 200 rad/s about an axis through the center of the disk perpendicular to the plane of the disk. There is a uniform magnetic flux B = 1 Tesla parallel to the axis of rotation.
v(t)=20te^( -40t ) and i(t)=50te^( -40t ) for t>=0 both v and i are zeros for i
An engineer needs to detect a binary strings of any length or composition provided that each contains at least one substring of "1101". a) Draw the state diagram of this finite state machine.
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