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A pn-junction is uniformly doped and has dopant concentration of NA = 4 x1016 cm-3 in the pregion at 300K. At zero bias, 20% of the total space charge region (W) is extended in the pregion.Calculate Vbi, ND, W, xn and xp. Given that ni = 1.8 x 106 cm-3 and ε=1.16 x 10-12 F/cm. Hint: Ndxn=Naxp.
consider a fax/xerox outlet, processin files of various size. the size (in number of pages) of the files to be faxed or xeroxed has a geometric (p) and poisson (a) PMFs respectively. An arbitrary file arriving at the outlet is a fax file with prob..
In a line of sight link , the transmitted power = 1 watt at the frequency of 11 GHz and the transmitting antenna has gain of 1000 , the receiving antenna is 40 Km apart from the transmitting station
What is the advantage of using a double-break contact instead of a single-break contact?
Eble Company proposes to invest $6 million in a new type of text printing equipment. The fixed costs are $1 million per year. The equipment is expected to last for 5 years. The manufacturing costs per hammer is $1. Calculate the break-even volume ..
find the desired recycle ratio (moles recycled/moles fresh feed) if in the fresh feed A is 20% in excess, the once through conversion of B is 60%, and the overall conversion of B to products from the overall process is 90%.
An Al0.3Ga0.7As p-n junction LED with doping level ND = 1 x 10^18 cm-3 on n-side and NA=1x10^15 cm-3 on p-side has Vf = 0.9 V forward bias across its junction. The LED cross-section is 200 µm x 200 µm.
A car with a projected frontal area of 1.8 m^2 is traveling at 136 KPH. If the drag coefficient of the car is 0.45 and the air density is 1.23 kg/m^3, find the total aerodynamic drag force on the car, and the power required to overcome this drag f..
Interface binary Input Output devices to the microcontroller
How to calculate the emf induced by an alternative magnetic field in a straight-line conductor of lenght L.
A particular signal source produces an output of 30 mV when loaded by a 100-k ohm resistor and 10 mV when loaded by a 10-k ohm resistor. calculate the thevenin voltage, Norton current, and source resistance.
1. Find the change in currents due to change of voltage by (a) 5mv,(b) -10mv, (c) 15mv using small signal model and exponential modelof diode with n= 1 and biased at 2mA. 2. A step up transformer has the turn ratio of 2:5
In a typical AC circuit, the supply voltage is 10 VPK and frequency is 60 Hz. If the current through the system is 2 APK with a phase angle of 60o, then the power dissipated by the source is
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