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1. What effect does an active-diode circuit have on the knee voltage?
2. What does a relaxation oscillator do? Explain the general idea of how it does this.
3. If a rectangular pulse drives a differentiator, what kind of output can we expect?
Design a 3-bit synchronous counter that counts the sequence 7, 4, 2, 1, 6, 5, 7, ect. Use "don't-cares" for the "next states" of the unwanted states. Use a D flip flop for the most significant bit, a T flip flop for the middle bit, and a JK flip f..
A jet engine is modeled as a serial combination of a compressor, an adiabatic constant pressure combustor, and a turbine. Air (considered to have a variable specific heat) is compressed through a compression pressure ratio of 8.25:1
A customer's arrival at a counter is uniformly distributed over a 30-minute period. Find the conditional probability that the customer arrived during the last 5 minutes of the 30-minute period given that there were no arrivals during the first 10 ..
i. Find the refractive index of the dielectric medium. ii. At what angle of incidence will the incident TM wave be totally refracted into air. iii. For a TE wave incident at the angle of incidence found in part (ii) above.
A discrete-time LTI system has the impulse response h[n]. Use linearity and time invariance to determine the system output y[n] if the input is h[n]={-2:n=-1, 3:n=0, 2:n=3, -4:n=5}
A superheterodyning FM receiver was originally designed and built to operate in the US only. The FM broadcasting band in the US is from 87.5 MHz to 108 MHz. The intermediate frequency of the receiver is fI = 10.7 MHz. This receiver has a poor RF B..
how can i detect a cave entrance on a rocky cliff now buried under 20 feet earth rocks by use of vertical electric
npn transistor has a CBJ with area 150 times that of EBJ. If Is= 5 x 10^-15 find the voltage drop across EBJ and CBJ when each is forward biased and conducting a current of 1mA. Also find the forward current each junction would conduct when forwar..
The frequency of the interference slowly varies in the range 950 to 1050Hz. A filter that attenuates the interference by at least 20 dB and passes most of the audio components is desired. What type of filter is needed? Sketch the magnitude Bode pl..
In AM, spectal overlap is said to occur if the lower sideband forpositive frequencies overlaps with its image for negativefrequencies. what condition must the modulated wave satisfy if we are to avoid spectral overlap
For the class A series-fed amplifier, the maximum efficiency can be determined using the maximum voltage and current swings. Calculate this maximum efficiency.
If a silicon diffusion is doped with phosphorus (donors) at a concentration of 0.6 x 10^17/cm^3, what is the concentration of holes in this piece of silicon per cm^3 Assume ni = 1.45 x 10^10/cm^3, n = 1000 cm^2/V-s, p = 400 cm^2/V-s
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