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A wire of diameter 1 mm and conductivity 5*10^7 S/m has 10^29 electrons / m^3 when an electron field of 10 mV / m is applied. Determine charge density of free electrons, current density, and current in the wire.
Saw on internet some equations to convert from frequency in hertz to mph. Some equations need a gear ratio while others do not. I found the equation mph = circumference * RPM * 60.
Three single phase 2400v/240v transformers are connected for operation as a 4160/240 v 3phase bank. Each transfomers has a Zeq1=1.42+j1.82 ohms and rated at 150kva
How many decimal numbers can be represented by 8-bits. What is the largest positive signed decimal number that can be represented by 8-bits.
A linear time-invariant system is described by the difference equation y[n]=x[n]+x[n-4] (a) Find its impulse response h[n]. (b) Find its system function H(z). (c) Plot the poles and zeros of H(z) in the z-plane.
Given the following function in canonical SOP form, h = a'bc' + a'bc + ab'c + abc' + abc use Boolean algebra to simplify h down to a minimum SOP expression that contain only 2 terms and 3 literals.
induction cooking based on power electronic is estimated to be 80 percent efficient compared to 55 percent for conventional electric cooking . if an average home consumes 2 kw-hrs daily using conventional electric cooking.
A 300 kW, 6600 V, 8-pole, 50 Hz, three-phase, Y-connected, non-salient pole (i.e., cylindrical rotor) synchronous motor has the following parameters: Xs = 72 ohm /phase at 50 Hz, R =10 ohm/phase for operation near base speed, and Efo = 3200 V/phase..
Define Root Locus and Routh-Hurwitrz, Use Routh-Hurwitz to find vales of K so that L = k (s+1) / (s^2 +4) (s+10) has poles to the left of s= -2
An AISI 4140 OQT 1000 sleeve is to be secured to a 2.50-inch diameter solid rod ot the same material employing a class FN1 force fit. The outside diameter of the sleeve is 5.00 inches.
Let a series R-L-C network be connected to a source voltage V, drawing a current I. a) In terms of the load impedance Z=Z at angle of Z, find expressions for P and Q from complex power considerations.
Within a region with volume 2.1 m^3, J=xhat*3.2*x A/m^2. What is the rate of change of total charge within the volume (in C/s)
An op-amp is to be selected for an inverting amplifier to be used at dc and very low frequencies. A closed-loop nominal gain of -100 is desired. Specification indicate that the error due to finite open-loop gain cannot exceed 0.1dB.
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