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Why mains electricity is dangerous

Why mains electricity is dangerous

Mains electricity is the supply delivered to buildings, and it is usually alternating current, so the current changes direction repeatedly. Electrical safety is about stopping dangerous current from passing through a person and stopping wires from getting hot enough to cause a fire.

Electrical safety Lesson

  1. IGCSE
  2. /Physics
  3. /Electrical safety

Step-by-step lessons on CIE IGCSE Physics Electrical safety, covering Electrical safety. Each one builds up to exam-style questions. Build a strong foundation in mechanics and electricity before tackling the more mathematically demanding astrophysics and nuclear topics.

Lessons