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Assume a 10w power is transmitted over an area with a radius of 10m. Determine power density attenuation (Lρ) and electric field strenght attenuation in dB when received power is reduced to 1/10 of the original.
What is the lowest value of Vcc for which the BJT will always remain in the active region. Sketch Vl versus time for a Vcc slightly lower than this limit. Which BJT region(saturationor cuttoff) limits the output voltage swing.
1. What is the purpose of core in hollow solder wire 2. What is tinning, and why is it important 3. Why is safety so important when soldering 4. Why has lead-free solder replaced lead-based solder Be sure to properly cite any sources of information.
Each equation above describes a field that is distributed sinusoidally and whose amplitude varies sinusoidally with time (a pulsating field). Prove for the resultant magnetic flux density in the air gap (a) at any given t
When the variable resistor is adjusted to one extreme position the overall circuit voltage gain should be 3. When the variable resistor is adjusted to its other extreme position the overall circuit voltage gain should be 13.
Explain Systematic Errors and Random Errors with suitable a case study for each error. Briefly comment on your answer based on your explanation.
The first element is located at the origin and the magnitude of the current on each element is: Element 1: i1=d1 (at z=0), Element 2: i2=d2 (at z = quarter wavelength), Element 3: i3=d3 (at z=half wavelength), Element 4: i4=d4
A zero mean gaussian random vector X=(X1, X2)T has a covariance matrix given by K=[ 3 -1 -1 3 ] Find a transformation matrix A so that the vector Y=AX is a gaussian random vector with uncorrelated (and therefore independent) components of unity va..
Suppose you are given the following task: "Find the smallest (in the signed sense) of a sequence of 100 8-bit values stored in sequential file register locations starting at file register 800." Write a short sequence of instructions to perform thi..
A 100-Ohm lossless transmission line is to be matched to a load with impedance ZL = 120 - j80 Ohm using a short-circuited stub. Use the Smith chart to determine: (a) the standing wave ratio, (b) the shortest distance from the load to the location ..
Simple in concept, but complicated in execution because of the resulting integrand: Explicitly evaluate (in Cartesian coordinates) the surface integral (flux) over the surface S defined as the face of the cube that is perpendicular
(i) Draw a diagram of the loads. Determine: (ii) The apparent power (kVA), active power (kW) and reactive power (kVAr) of each of the three loads. (iii) The total apparent power kVA, total active power (kW) and the total reactive power (kVAr) of the ..
b)what is the total power in the signal the power in the DC portion of the signal and the power in the time-varying portion of the signal c) write the equation for and sketch the power spectral desity of the random signal
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