Discussion
Which coaxial cable is used for analog transmission ?
Answer: C
Analog transmission uses 75 ohm cable.
75-ohm coaxial cable (broadband coax) is used for analog signals such as cable television and broadband networks.
50-ohm coax (baseband) was used for digital transmission, as in the original Ethernet. 25 and 100 ohm are not the standard impedances of coaxial cable for these uses; 100 ohm is typical of twisted pair.
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