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Consider a random variable that obeys a uniform desist and varies from 2 to 5.a). Determine the mean and variance of the random variable.
b). what is probability that the random variable is between 2 and 3?
c). Plot the CDF.
A silicon diode with a breakdown voltage of 2000V that is conducting a forward current of 2000A is turned off with a constant diR/dt=250 A/s. Roughly estimate the time required for the diode to turn off.
Suppose the voltage across a telephone line at the subscriber drops from 48V to 10V when the phone goes off hook. If the telephone instrument has a resistance of 200 ohms when off hook and represents an open circuit
We have v1(t)=10cos(wt+30degrees). The current i1(t) has an rms value of 5A and leads v1(t) by 20s. (The current and the voltage have the same frequency) Draw a phasor diagram showing the phasors.
Find the absolute potential at a distance h off of the end of the segment. How much work is needed to transport a point charge Q1 from infinity to this location
Suppose that the amount of a weekly bill of all households is distributed with a mean of $140 and standard deviation of $35. Let X var be the average amount of bill of a random sample of 49 households selected.
A collector modulated transmitter has a supply voltage of 48 V and an average collector current of 600 mA. What is the input power to the transmitter How much modulating signal power is needed to produce 100 percent modulation
Draw a state diagram for a synchronous sequence detector that will detect every occurence of the sequence 111001 in a serially transmitted message of any length. The sequence detector should detect overlapping sequences as well as individual occur..
How would you determine whether a given function, f(t), had finite or infinite energy. Give an example of a function with finite energy and one with infinite energy.
Design a Miller integrator with a time constant of 0.1 s and an input resistance of 100 k ohm. A dc voltage of -1 volt is applied at the input at time 0, at which moment vO = -10 V. How long does it take the output to reach 0 V to +10 V
A silicon (ni= 10^10 cm^-3) p-n junction diode has a maximum electric field of -10^6 V/cm and a depletion layer width of 1 um. The acceptor density in the p-type region is four times larger than the donor density in the n-type region.
An instructor in Engineering Department has the following grading policy: "Curving of grades is achieved by adding to every grade the difference between 99 and the highest grade in the class"
Write a function 'charges' that computes the total charge for a customer based on the GB of data the user uses per month. The function should also calculate the average cost per MByte of data (rounded to the nearest cent).
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