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A television signal (video and audio) has a bandwidth of 4.5 MHz. This signal is sampled, quantized, and binary coded to obtain a PCM signal.
(a) Determine the sampling rate if the signal is to be sampled at a rate 20% above the Nyquist rate.
(b) If the samples are quantized into 1024 levels, determine the number of binary pulses required to encode each sample.
(c) Determine the binary pulse rate (bits per second) of the binary-coded signal, and the minimum bandwidth required to transmit this signal.
Can outside air ever be completely shut off from a space?
A 15kV:175kV, 125 MVA, 60 Hz single-phase transformer has primary and secondary impedances of 0.0095+j0.063 per unit each. The magnetizing impedances is j148 per unit. All quantities are in per unit on the transformer base.
What is the maximum amount of real power transfer if any three line segments are out of service? Figures from power world showing the result are needed
A 240/2400 V(rms) step-up ideal transformer delivers 50 kW to a resistive load. Calcualte the turns ratio, the primary current & secondary current
Find the expression for the total equivalent capacitance for an array of n capacitors with arbitrary capacitance C1,C2,...,Cn; when they are connected a) inseries and b) in parallel.
A certain scaling adder has two inputs, one having twice the weight of the other. If the resistor value for the lower-weighted input is 10 k , what is the value of the other input resistor?
suppose a fair coin is tossed n times. each coin toss costs d dollars and the reward in obtaining x heads is ax2 bx.
Find the time of day (solar time) at which the sun will be due West.
Assume, the program is to start at $C000. The program is to sort a block of 8-bit data where the starting address of the data block is stored at location $8000/8001 and the 8-bit data where the starting address of the data block is stored at $8002..
Two vertical forces are applied to a beam of the cross section shown. Determine the maximum tensile and compressive stresses in portion BC of the beam.
Design an electronic circuit that counts metal objects moving in counter/Conveyor and display the number of objects in the counter.
Solve the equation z^2+z+1=0 using z=(x,y) and the basic definitions. (Hint: Note that y does not equal 0 because the equation X^2+X+1 does not equal 0 for any real number x.)
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