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A silicon wafer has a uniform doping density of 4x10^19 atoms cm^-3 of Arsenic and 4x10^19 atoms cm^-3 of Phosphorus. Assume that all atoms are fully ionized at room temperature.Compute accurately the resistivity of the wafer at room temperature (4 decimal point). No graph calculation.
A separately excited 300V DC motor has an armature resistance of 1ohm and a field resistance of 100 ohm. The field Voltage is 200V. The no load speed is 1200 rpm and no load armature current 2A
A 208-V,60-Hz,three phase power system consists of an ideal 208-V,Y connected, three phase generator connected through a three-phase transmission line to a Y-connected load. The transmission line has an impedance of 0.06 + j0.12 ohms per phase
Without using a truth table, find: (a) the minterm and maxterm expansions for F in algebraic and decimal forms (SOM,POM) (b) the minterm and maxterm expansions for F' in decimal form (SOM,POM).
A laser (wavelength fo = 633 nm) is generating a Gaussian beam with 0.1 mm beam waist (2wo). (1) Find the beam's divergence angle and depth of focus (2) What will be its diameter when it reaches Moon
Describe the operation of the series RC circuit. The discussion must address phase angle relationships of current and voltage. The answer must include the effect of source frequency on the voltage drops across the resistor and the capacitor at ver..
design a pulse-mode (Asynchronous, no clock) automatic vending machine. The candy bars inside the machine cost 25 cents. The machine accepts nickels, dimes and quarters. There is an electromechanical system that accepts the coins sequentially.
Convert the minimal SOP expression of f to use only two-input NAND gates using Boolean algebra Implement f using only NAND (7400) and NOT (7404) gates and demonstrate it to your lab TA Find the minimal representation of f using only two-input NOR ..
For a unity feedback system with forward path transfer function (Open-loop transfer function) as follows G(s) = 5000/ s(s + 75) derive closed-loop transfer function
Due to an Internet configuration error, packets sent from New York to Los Angeles are routed through El Paso, Texas with probability 3/4. Given that a packet is routed through El Paso, suppose it has conditional probability 1/3 of being dropped.
The voltage across a 1-µF capacitor is given by v(t)=100 e-100t . Find expressions for the current, power, and stored energy. Sketch the waveforms to scale versus time.
Consider a p-type Si sample with a resistivity of 0.5 cm. The doping level is uniform throughout. In a certain portion of this sample, there is an electric field of a magnitude 1000 V/cm.
The minimum useful bandwidth of the amplifier should range from 10Hz to 100KHZ, and this can be determined by the frequency of vin.The maximum peak value of vin is 0.5V. The specified coupling capacitors(non-polarized) are anticipated to comply wi..
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