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Modern household and industrial wiring uses a system of three wires: live, ground and:

ANeutral
BNickel
CNylon
DNozzle
Answer & Solution
Correct answer: A. Neutral
1. Three wires are named together. 2. The third completes the return path. 3. It is the neutral wire. _Source: OpenStax University Physics Volume 2, Chapter 10, Direct-Current Circuits._
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