In time-division multiplexing, assume that a 4,000-hertz tone is applied to each of six channels in a telegraph transmitter and that each channel is to be sampled at a rate of 2. 5 times during each cycle of the 4,000-hertz tone.
At what speed, in revolutions per second, must the rotating switch turn to accomplish this sampling rate?
A. 3,000
B. 4,000
C. 7,200
D. 10,000
Show Answer
Answer: D
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