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For what purpose was twisted pair cable first used?(a) AM(b) Telephone(c) Wi-Fi(d) Digital data transmission |
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Answer» Correct option is (b) Telephone The explanation is: Twisted-pair cable uses two insulated solid copper wires covered with insulation and loosely twisted together. This type of cable was first used in telephone wiring and is still used for that today. But it is also used for security system wiring of sensors and other equipment. |
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