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In discussing thermal noise at the beginning of this chapter, we stated that at standard temperature (290 K) the white noise assumption is valid to bandwidths exceeding 1000 GHz. If the temperature is reduced to 3 K, the variance of the noise is reduced, but the bandwidth over which the white noise assumption is valid is reduced to approximately 10 GHz. Express both of these reference temperatures (3 and 290 K) in degrees fahrenheit.
In each of the following sets, the function have been minimized individually. Find a minimum two-level circuit (cooresponding to SOP expression) using AND and one OR gate per function for each. F = B'D' + CD' + AB'CG = BC + ACD ( 6 gates, 15 inputs..
Show mathematically that the spectrum of a sampled signal is a periodic version of the spectrum of the continuous-timesignal. Write the solution neatly into your learning journal.
Using the brand attribute framework in Exhibit 7.1, construct an overall branding statement about a product or service of your choice. How would other consumers and especially potential customers look at this brand?
Natural gas consists primarily of methane, CH4(g). Write a balanced chemical equation for the complete combustion of methane to produce CO2(g) as the only carbon-containing product.
A silicon abrupt junction, approximated by a step junction, has a doping of NA= 5 x1015/cm3 and ND= 1015/cm3 and a cross-sectional area (A) of 10-4cm2. Assume the depletion approximation, VA=0, and ni=1010/cm3 to: a. Calculate Vbi.
Assuming a uniform current destiny, Find the inductance per meter of length of a coaxial conductor with and Inner conductor of a radius .5 cm, Outer conductor having an inner radius of 2.5 cm and and outer radius of 2.7 cm.
Given that you want to transfer a 3MB song by sending packets across an Ethernet link that has a MTU. of 1500 Bytes, answer the following questions. (for this question use 1MB = 1024KB, 1KB=1024Bytes)
a 3 V voltage generator is depicted as a thevenin model, the impedence of the generator is represented by a parallel resistor-capacitor combination, the value of the resistor is 20 ohms and the value of the capacitor is 10 farad.
An FM transmitter delivers to a 75 ohm antenna a signal voltage of V(t) = 1000 sin ( 109t + 4 sin 104t ) Determine: (a) Carrier frequency (b) Intelligence frequency (c) Modulation index (d) Total power in FM signal (e) Carrier power (f) Power in e..
during an ap the membrane potential typically moves from -70mv to 20mv and back again. in a cell with 10um radius and
If an ice cream cone is 6 inches tall and its rim has a diameter of 2 inches, determine the weight of ice cream that can fit in the cone assuming the ice cream above the cone is a perfect hemisphere.
1. What is the difference between discrete system and digital system. 2. What is "baseband modulation"? What types of baseband modulation are there. 3. How does time division multiplexing work? What factors affect how many channels you can transmit.
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