Engineering, 26.03.2021 20:40 ashiteru123

Resistors of various capacities are purchased in lots of 100, with specifications that each resistor have variability (as given by a relative standard deviation) of 2%. Assume that a 10-ohm and a 20-ohm resistor are selected at random from those purchased. a. Calculate the expected value and variance of the overall resistance if the two resistors are connected in series. b. Calculate the expected value and variance of the overall resistance if the two resistors are connected in parallel. c. Determine wh variation ich arrangement of these two resistors (series or parallel) yields the smaller coefficient of Variation.

Answers: 2

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, qwertylol12345

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

Answers: 2

continue

Engineering, 04.07.2019 18:10, genyjoannerubiera

Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)

Answers: 1

continue

Engineering, 04.07.2019 19:10, moneyyfletcher

The air in an automobile tire with a volume of 0.015 m3 is at 32°c and 140 kpa gage. determine the amount of air that must be added to raise the pressure to the recommended value of 206 kpa gage. assume the atmospheric pressure to be 128 kpa and the temperature and the volume to remain constant.[r-0.287 kj/kgk]

Answers: 3

continue

Engineering, 06.07.2019 02:30, onlymyworld27

In a unit cell of fcc structure, indicate the position of one of the tetrahedral interstitial sites by plotting the corresponding tetrahedron. do the same for one of the octahedral interstitial sites (in a separate fcc unit cell). mark the positions of all the tetrahedral and octahedral interstitial sites in the unit cells. how many equivalent tetrahedral sites and how many equivalent octahedral sites are contained in a fcc unit cell, respectively. what is the coordination number for a tetrahedral site and what is the coordination number for an octahedral site?

Answers: 2

continue

You know the right answer?

Resistors of various capacities are purchased in lots of 100, with specifications that each resistor...