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In a sourceless medium in which J=0 and ρv=0,assume a rectangular coordinate system in which E and H are functions only of z and t. The medium has permittivity ε andpermeability μ.(a) If E=Exax andH=Hyay, begin with Maxwell's equations anddetermine the second order partial differential equation thatEx must satisfy.(b) Show that Ex=E0 cos (ωt-βz) isa solution of that equation for a particular value of β.(c) Find β as a function of given parameters.
1. Obtain a minimal hazard free SOP expression for f(A,B,C,D)=fm(0,1,5,6,8,11,13,14,15),d(2,3,10). 2.Implement f(A,B,C,D)=åm(0,4,5,7,10,13,14,15),d(1,2,9) using a minimal number of 1-of-2 MUXs and NOT gates (if needed).
An address decoder in a 68000-based microprocessor system selects a memory device when the address lines A23, A22, A21, A20, A19, A18 = 1, 0, 0, 1, 1, 0. What is the size of the memory block decoded and what range of addresses does it span
Consider the following signal w(t) = 4sinc(400*t) a) What is the minimum sampling rate that can be used to obtain samples that completely specify the signal w(t)
A point charge of 10 C moves with a uniform veloctiy of 2ax - 4az m/s in an electromagnetic field having E = ax - 3ay + 8az V/m and B= 0.3ax + 0.1ay. Find the force on the charge due to the electric field; the force on the charge due to the magnet..
A block error detecting code has a minimum distance of three. How many errors can this code detect and how many can it correct
The s-plane diagram of a filter shows that it has a cluster of four poles in the left-half s-plane that are arranged in a semi-circle near +/- j628. The filter also has two zeroes at the origin.
A 230V shunt motor having an armature resistance of 0.05 and a field resistance of 75 draws a line current of 7 A while running light at 1120 rev/min. The line current at a given load is 46 A.
design an IIR high-pass filter using bilinear method in a system with sampling frequency of 100 Hz. The lower and higher cutoff frequencies are at 18 Hz and 35 Hz respectively. Pre-warp the cutoff frequencies.
A 50 kVA, 6360V/230V transformer is tested on open and short-circuit to obtain its efficiency. The results of the tests are as follows. Open circuit: primary voltage, 6360V; primary current, 1A; power input, 2 kW. Short circuit: voltage across pri..
Spectrum Analyzer, A spectrum analyzer is connected to an unknown signal. The spectrum analyzer displays the power level of signals in dBm vertically and frequency horizontally. The spectrum of the unknown signal creates the following display:
A company is considering purchausing an impact wrench for $1000 which wich has a maximum life of 4 years. The impact wrench can be sold for $600 at the end of oneyear and this salvage value decreases by $200 per year through year 4.
a) If the internal resistance of a voltmeter is 100x bigger than the output impedance of a circuit, what is the loading error b) If the internal resistance of an ammeter is 10x smaller than the output impedance of a circuit
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