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A low pass filter has a cut-off frequency of 8 kHz and a high pass filter has a cut-off frequency of 5 kHz. These two circuits are connected back to back in cascade to form an input-output system. How does this combination work, band pass or band stop?
An object of mass m = 0:1 kg is dropped from a high tower. Suppose the magnitude of the force due to air resistance is 0:98v2. (The gravitational constant is g = 9:8 m s2 ). a) Write down the dierential equation satisfied by velocity.
Design a two-stage switching network, using 4×4 switches, to connect 16 incoming trunks to 16 outgoing trunks, using a consistent numbering arrangement for associating the switches with the links.
a. Draw the block diagram for a coherent receiver for QPSK using the same basis signals as in problems ("What frequency must be used for basis symbols f1 = sin(pi*ct) and f2 = cos(pi*ct) with a symbol period of 1/(9600Hz) to contain 6 cycles of th..
What is the maximum number of DECIMAL digits that can be generated with this choice of N (ie. the maximum length of the sequence of decimal numbers that could be generated with this choice of N, before any number repeats itself)
Generate a sine wave signal with amplitude A=1, and frequency=0.1592Hz. Using a uniform PCM method, quantize it ot a) 8-level and b) 16-level. Plot the original signal and the quantized signals on the same axes
Obtain the power factor of a two-branch parallel circuit whre th efirst branch has Z1 = 2 + j4 ohms and the second Z2 = 6 + j0 ohms. To what value must the 6-ohm resistor be changed to result in the overall power factor of 0.90 lagging
Construct a table showing the current for values of time between 0 and 9 hours at intervals of 1 hour.Hence draw a graph of i against t for 0 is smaller or equal to t is smaller or equal 9.(cannot type in proper inequality symbols)
Consider points P(2,4,3) and Q(1,-5,2) in three dimensional space: Find the position of vectors r1 and r2 for P and Q in terms of unit vectors i,j,k Determine graphically and analytically the resultant of these position vectors Hint: resultant vector..
A 12-bit ADC with a Vref of 5V is used to digitize small signals with a quiescent value of 2.5V and a variation around 2.5 of +/- 100mV. What is the SNR of the digitized signal if the ADC is ideal
The inductance of a closely packed coil of 400 turns is 9.5 mH. Calculate the magnetic flux (per winding) through the coil when the current is 5.0 mA.
(a) Calculate thefrequency domain representation S(f)ofthis signal (b) Calculate the frequency domain representation ofthe pre-envelope S+(f) OFS(t) (c) What is thepre-envelope s+(t) of s(t)
What is the system reliability for a light panel containing 12 light bulbs, and only requires 9 bulbs to be working for success (only 3 failures allowed). The reliability performance of the bulbs is based on the exponential reliability distributio..
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