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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.
Make a dimensioned log (p and n) versus x sketch of both the majority and minority carrier concentrations in the quasineutral regions of the device. Identify points 10 and 20 diffusion lengths from the depletion region edges on your sketch.
An indiviual wishes to deposit an amount of money now and $100 every six months so that at the end of five years $1500 will have been accumulated. With interest 4% per year, compounded semiannually, how much should be deposited?
a half wave rectifier circuit with a 1K ohm load operates from a 120V rms 60-Hz household supply through a 10-to-1 step down transformer. It uses a silicon diode that can be modeled to have a 0.7V drop for any current.
Determine the minimum bandwidth required to achieve a P(e) of 10^-4 for a 16-PSK system operating at 25 Mbps with a carrier-to-noise ratio of 10 dB
An infinite plane in the xz plane carries a uniform surface charge density s1 = 75 nC/m2. A second infinite plane carrying a uniform charge density s2 = 30 nC/m2 intersects the xz plane at the z axis and makes an angle of 30°
Two capacitors labeled A and B are connected in series. They have the same charge but A has twice the voltage across it than B has. Which capacitor has the greatest capacitance
pressure limits of 10 kPa and 8 MPa, with reheat occurring at 4 MPa. The temperature of steam at the inlets of both turbines is 500°C, and the enthalpy of steam is 3185 kJ/kg at the exit of the high-pressure turbine
An electric motor draws 120kW from the line and has losses equal to 20kW, Calculate the output power in HP and efficiency of the motor.
A network has an input impedance of 120+100j Ohm what is the capacitance that should be placed in parallel with the network to provide an input impadance with: a) Zero Reactance at w=1000 rad/s b) Zero Reactance at w=2000 rad/s
Design a human body temperature indicator system for a hospital bed. Your system takes an 8-bit input representing a person's body temperature,which can range from 0 to 255. If the measured temperature is 95 or less, set output A to 1.
Given N-type silicon sample with uniform donor doping of (a) Nd= 1018/cm3 , (b) Nd= 1019/ cm3 and (c) Nd= 106/cm3, calculate the Fermi levels at room temperature assuming full ionization for all cases.
Design an EKG amplifier interface to a 6811/6812. The biopotential is a ±5-mV signal measured between the left and right arms using silver-silver chloride electrodes. A third electrode is placed in the right leg and is used as a reference.
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