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Communication Channel A particularly interesting communication channel can be modeled as a linear, time-invariant system. When the transmitted signal x (t) is a pulse, the received signal r (t) is as shown (Figure 2.22).
a) What will be the received signal when the transmitter sends the pulse sequence (Figure 2.23) x1 (t)?
b) What will be the received signal when the transmitter sends the pulse signal (Figure 2.23) x2 (t) that has half the duration as the original?
A one-dimensional infinite potential well with a width of 12 Ao contains an electron. (a) Calculate the first two energy levels that the electron may occupy. (b) If an electron drops from the second energy level to the first, what is the wavelengt..
1) Modern technology has produced a small 1.5-volt alkaline battery with a nominal stored energy of 150 joules. For how many days will it power a calulator that draws a 2-mA current 2)The current entering the positive terminal of an element is
The schematic of the traffic light controller
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