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Polyvinyl chloride is a good electrical

  • A.Insulator
  • B.Bulb
  • C.Transmitter
  • D.Conductor

Answer: A

Polyvinyl chloride is a good electrical insulator.

PVC has no free electrons or ions to carry current and resists moisture, so it is widely used to insulate electric wires and cables and to make switch boards and conduits.

A conductor is the opposite: metals such as copper and aluminium conduct because they have free electrons. A bulb and a transmitter are devices, not properties of a material, so they cannot complete the sentence.

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