In electronic circuits it is not unusual to encounter currents in the microamperage range. Assume a 20 micro amp current, due to the flow of electrons.

a) What is the average number of electrons per second that flow past a fixed reference cross section that is perpendicular to the direction of flow.

b) Compare the size of this number to the number of micrometers between Miami and Seattle. You may assume the distance is 3303 mi.

Please show all work step by step and include drawings for visual reference.

Solution Preview

I found this conversion between number of electrons and coulombs of charge: 6.238794524 X10^18 electrons/coulomb. I actually pulled this number from electrochemistry considerations using 96,493 Coulombs per Faraday and one Faraday is the activity of a mole of electron 6.02 x ...

Solution Summary

This solution is provided in 196 words. It uses a conversion of electrons and coulombs of charge to find the number of electrons flowing past per second, and how this number relates to the distance between Miami and Seattle in micrometers.

A factory worker places 93 newly created circuits on a shelf to be checked for quality. Of these, 8 will not work correctly. Suppose that she is asked to randomly select two circuits, without replacement, from the shelf. What is the chance that both circuits she selects will be defective? Show step by step work! Approximate the

Please see attached file on Transients in RLC circuits and Laplace transform.
Please complete the following examples and show detailed workings and narratives including transposition of formula and graphical display where required.

Determine C so that the plant power factor of Figure P7.25 (see attached file) is corrected to 1 (or the power factor angle to zero) so that Is is minimized and in phase with Vo.
vs(t) = 450cos(wt) V
w = 377 rad/s
Z = 7 < 0.175 Ω

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(See attached file for full problem description)
For this module you will design some simple digital circuits based on Boolean expressions. Draw circuits that implement the following Boolean expressions using some combination of AND, OR, NOT, NAND, and NOR gates...

Problem 1
A simple circuit consists of a resistor connected to a battery. The battery has emf (e), internal resistance (r), and terminal voltage (V_ab), and the resistor has resistance (R) .
Rank the following circuits in order of current, from highest to lowest values.
1. e = unknown 2. e = 1.4 V
r = 0.1 ohms

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V >= 15 V
P_R >= 5 W (P_R is used to indicate P subscript R).
Express your final answer to the nearest Ohm.

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