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If the semiconductor depicted in the graph below is germanium at room temperature, what is the value of n (the density of electrons in the conduction band) at x=L
Three 150 kVA, 480V/4000V,60 Hz single-phase transformers are to be installed on a 4000V, 3-phase line. The exciting current has a value of 0.02 pu. Calculate the line current when the transformers
Two machines and a lighting load are connected in parallel to a 220 V, 60 Hz line. The first machine uses 40 kW of power at 0.81 power factor lagging. The second machine uses 27 kVA at 0.93 power fa
A delta-connected source has a line-to-line voltage rating of 470 Vrms. Its wye-connected load has a power rating of 2125 W with a pf of .85 lagging. Find the rated phase currents.
A thin ,non conducting line of charge lies along the x axis. One end is at x=-1.00m and the other end is at x=+1.00m. The total charge on the line is 5.00 µC. calculate the vector (magnitude a
A 1500 hp phase ac motor load has a power factor of 0.7. What capacitor (in Farads) is required to correct the power factor to 0.90 if the line voltage is 2400 volts The capacitor bank is to be delt
The power is generated by a DC power facility at a voltage of 10 V and deliver by two power lines with resistance Rline=3 ohm. The maximum power the voltage source can deliver is 5 W. a) Find the to
Create a circuit of three level sensitive D latches connected in series(the output of one is connected to the input of the next). Use a timing diagram to show how a clock with a long high time can c
(b) Construct a 3-input-8-output binary decoder using NOT, AND and OR gates (without enable logic). (c) Using the above decoder, design the following logic function. Add the required gates and re-draw
Use K-map reverse engineering to evaluate if the following SOP functions are minimized If not, find the minimal SOP expression. (a) F(A,B,C,D) = A'C'D' + A'C + AB'C' + ACD' (b) F(W,X,Y,Z) = XY' + WX'
design and implement an access control circuit for my research lab. There are two inputs - a key card swipe on the door that produces an ID in the 0.7 range, and a day/night sensor that is 1 during
Assume that you have a CMOS inverter with a perfectly symmetric voltage transfer curve (VTC). What will happen to the VTC if you size down the NMOS transistor
Design a 7.5-V zener regulator circuit using a 7.5-V zener specified at 12mA. The zener has an incremental resistance r(z) = 30 ohms and a knee current of 0.5mA. The regulator operates from a 10-V s
What degree of matching in emitter area is required for the base-emitter voltages of two bipolar devices with identical collector currents to have a difference of less than 5.0mV Use VT= 25.85mV.
Through the data sheet the power meter is 4.5 HP. Find the hp range for PH-3A-HG in hp. The power meter measures the power and outputs a 0 - 10 voltage signal. Calculate the conversion factor for co
The dielectric strength of air is 3.0 10^6 V/m, and that of neoprene rubber is 1.2 10^7 V/m. A certain air-gap, parallel plate capacitor can store no more than 0.070 J of electrical energy before br
Design an analog divider circuit with a minimum number of op amps with Vo = f(V1/V2) where V1 and V2 are inputs of the circuit and Vo is the output and derive Vo in terms of V1 and V2 and the circui
Calculate the gain of an inverting amplifier with Rs = 100kO and Rf = 500kO. Assume the op amp is ideal. Calculate the gain of an inverting amplifier with Rs = 100kO and Rf = 500kO.
(a) Show the truth table of a 3-input-8-output binary decoder (without enable logic). (b) Construct a 3-input-8-output binary decoder using NOT, AND and OR gates (without enable logic).
Write a program that asks the user to enter the numbers from 1 to 16 (in any order) and then display the numbers in a 4 by 4 arrangement, followed by the sums of rows, columns and diagonals.
Create the layout design for MOS NAND3 gate using a depletion-type transistor with VTL = -0.3V and enhancement-type transistors with VTO = 0.5V such that VOL is less than or equal to 0.1V. VDD = 2.5
design a 3-bit synchronous counter (using only D-flip flops and NAND gates) that produces the sequence 000, 010, 011, 001, 101, 100, 000, etc. whenever the single input is 1. The counter retains its c
A silicon bar is 2 micro meters long and has 100 micro meters squared cross section. It is doped with 1x10^17 cm^3 arsenic. a) Find the current with 1V applied at room temperature b) How long does it
define a one-dimensional potential well having energies U as a function of position x as follows: U=infinity for x= -1nm to x=0; U=0 eV for x=0 to x=5nm; U=10 eV for x=5nm to x=7nm; U=0 for x>7nm
Two LTIC systems have impulse response functions given by h1(t)=(1-t)[u)t)-u(t-1)] and h2(t)=t[u(t+2)-u(t-2)].a) Carefully sketch the functions h1(t) and h2(t). b) Assume that the two systems are conn