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Given an N+PN BJT with a Wb, base width, of 0.5um and a doping of 1016/cm3, (a) determine the contact resistor that can go on the base if the length of the contact is 10 * Wb. (b) Plot the change in conductance in relation to varying the doping from 1014/cm3 to 1018/cm3 at room temperature. Redo the graph at 77K; what do you infer in relation to the contact resistance.
Design a microstrip transmission line with Z0 =100 ohm that will be etched onto a sielectric substrate with er = 3 and a thickness of 4 mm. what should be the width of the microstrip line
However, the pump requires 60 W of parasitic power to operate continuously. Is installation of the pump justified. Explain. At what value of parasitic power does the addition of the pump become unjustified.
A circuit element is hidden inside a potato sack and draws a current which varies with time t, measured in seconds, i(t) = 0.04 e(-4400 · t) Amps, while the voltage drop across this element is given by the function v(t) = 6.061 (1 - e(-4400 · t)) ..
How to calculate amt of time btw Energy,max,L and Energy,max,C is stored at the resonant freq.? Are these max energy stored at the same time
(a) What is the acceleration of an electron in a uniform electric field of 1.0x106 N/C (b) How long would it take for the electron, starting from rest, to attain one-tenth the speed of light. Assume that Newtonian mechanics holds.
A second-order bandstop filter is required to satisfy the following specifications: fs= 8,000 Hz f0= 60 Hz bandwidth= 40 Hz Find the transfer function and difference equation by the pole- zero placement method.
Assume that a Ga-As bond in GaAs has a bond energy of 1.0 eV. Calculate the energy needed to cleave GaAs in the (001) and (110) planes. Calculate the energy per area.
One superhet, one homodyne, and one that downconverts to baseband receiver is operating in 700-750MHz. Pick a set of IF and LO frequencies, and identify any issues (images, spurs, LO harmonics in receiver band, services that interfere with IF)
Given two NMOS FETs having (kn'/2)(W/L) = (3 KW)^-1 and Vt = 3V. Using a single 10V dc power supply, design a differential pair amplifier having 1mA bias current in each transistor. What is its maximum gain for linear operation (balanced input, ba..
a 60-kHz sinusoidal signal is applied to an amplifier with a gain of k=2. the circuit is built with an lm741 opamp with power supplies +-13V. find the largest amplitude the signal may have before it is limited by slew rate constraints.
On a spacecraft two engines fire for a time of 541 s. One gives the craft an acceleration in the x direction of ax = 4.90 m/s2, while the other produces an acceleration in the y direction of ay = 7.60 m/s2.
Problem Statement: Solve the load flow problem below in Matlab, or similar program, using the Gauss-Seidel Method.
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