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Coaxial cables are ________ lines?(a) Balanced(b) Unbalanced(c) LAN(d) Parallel wire |
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Answer» Correct choice is (b) Unbalanced The explanation: Coaxial cables are unbalanced lines; the current in the center conductor is referenced to the braid, which is connected to ground. Coaxial cable and shielded twisted-pair cable provide significant but not complete protection from noise pickup or cross talk from inductive or capacitive coupling due to external signals. |
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