Practice question

An electrical accessory circuit draws 15 Amps, but its wire size is rated for only 5 Amps. What is the most likely result of operating this circuit?

  1. The circuit voltage will increase to match the current draw
  2. The wire will overheat, damage its insulation, and potentially cause an electrical fire
  3. The wire resistance will drop to zero to compensate for the load
  4. The electrical accessory will run at three times its normal speed

Answer: B — The wire will overheat, damage its insulation, and potentially cause an electrical fire

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