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In AM, spectal overlap is said to occur if the lower sideband forpositive frequencies overlaps with its image for negativefrequencies. what condition must the modulated wave satisfy if we are to avo
You discover that theengineer providing you the digital inputs did a terrible job with tolerances and that the voltage levels of 0V and 1V can drift up to+-0.15V. Design a front-end for the results
Using a 7490 decade counter, design a circuit to count from0 through 9 and display the values on a seven-segment display Produce a logic diagram for circuit.
Consider a futuristic space probe, whichis in orbit around a distant planet which has a mass that is 1.5times that of earth. As part of it's mission, this probeestablishes a circular orbit 40,000 km
Determine capacitance for a capacitor connected to a dc source if you know that its voltage rises from 20 to 30 volts in 2μs with an average current of 0.5 A.
The manufacturer of a 9V dry-cell flash light battery says that the battery will deliver 20mA for 80 continuous hours. During that time the voltage will drop from 9V to 6V.Assuming the drop in volta
let a character stream fromthis source be Huffmancoded. Then, let groups of consecutive four message bitsbe encapsulated into 8-bit SEC-DED Hamming code words.Suppose the following two Hamming are
A (0-10A) range ammeter has an internal resistance of 0.0002Ohms. It is necessary to use this meter for measuring a currentwhich is likely to be in the range of (0-70A) Amperes. Design aresistance c
1. prove the distributivity commutativity associativity of convolution sum 2. prove that the absolute summability of impulseresponse is a necessary condition for the BIBO stability of LTE discrete t
A water tank consists of a cylindrical part of radius r and height h, and a hemispherical top. The tank is to be constructed tohold 500 m3 of fluid when filled. The surface area of thecylindrical pa
Design a circuit with one output f and four inputs x1, x0, y1, andy0. Let X = x1x0 be a 2 digit binary number. X can have fourpossible valuations (X=x1x0), namely, 0 = 00, 1 =01, 2 =10, and 3 =11.
a) Starting from an initial count of 0000, list the countingsequence after each shift until the count returns to 0000b) Beginning with an initial count of 00..0, what is the length ofthe count sequenc
A sighnal must be transmitted over distance L. You can use aguided (attenuating) medium, like a coaxial cable, or radiation(dissipating) from an antenna. Testing the two media reveals: (a)on the coa
Two balanced three phase loads that are connected in parallel arefed by a three pahse line having a series impedence of 0.4+j2.7ohms per phase.one of the loads absorbs 560kva at 0.707 pf laggingand
Suppose we used the thumb rule that the optical line of sight distance from an antenna h meters high to the horizon,in kilometers is 4√h. what is the radius of the earth in kilometeres that wo
A practical Voltage source is modeled of an ideal voltage source of24 volts in series with a 6ohm internal resistance. A series ofidentical fan motors are attached in parallel with the practical sou
The PCI bus found in many desktop computers transmits 64 bits perclock cycle at a 33MHz clock rate. How does the bandwidth of the PCI bus compare to the serial firewire (IEEE 1394) serial busspecifi
A 250V rms system is supplying three parallel loads. One draws a 20kW at unity power factor, a second uses 25kVA at PF=.8 lagging, and the third requires a power of 30kW at a lagging PF of.75
a balanced three phase 208 V source supplies a balanced three phase load. if the line current IA is measured to be 10 and is in phase with line to line volatege Vbc, find the per phase load impedenc
a three phase 25 kva 208 V 60hz alternator operating under balancedsteady state conditions , supplies a line current of 20 A per phaseat a 0.8 lagging power factor and a rated voltage. determine the
Could someone explain to me if an exclusive-OR function has Y=AB' +A'B, AND Y'=AB + A'B' . how do you find the sizes for thetransistors used in the exclusive OR circuit assume that the basicinverter
GaAs is composed of equal numbers of atoms of gallium and arsenicin a lattice similar to that of silicon. Suppose a siliconatom replaces a gallium atom in the lattice. Do you expect the silicon atom
A. Firstly, if you want a current source constant to 1% over a load voltage range of 0 to +10 volts, how large a voltage source must you use in series with a single resistor B. Now suppose you want
Describe how you would use the combination of a short pass filter, a long pass filter, an amplifier and a mechanicalchopper to amplify a 5 mV signal to a 50 mV signal and remove noisefrom the origin
A digital signalling system is required to operate at 38.4 Kbps. If a signal element encodes a 8-bit word, what is the minimum required bandwidth of the channel. what signal to noise ratio is requir