Red Seal Electrician Practice
Safety and work practicesQuestion 1083 of 1506

Why is it a concern to raise supply voltages at the point of use?

  1. The current is higher
  2. The shock danger is higher
  3. The wire must be thicker
  4. The frequency changes
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Correct answer: The shock danger is higher

Higher voltage reduces current but raises the electric shock hazard, so a balance is needed.

Source: Lessons in Electric Circuits II: AC (Kuphaldt), 7.1: Single-Phase Power Systems

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Questions last reviewed: 18 October 2026