PhysicsChapter 6: Electrostatics
Lightning Conductor
Introduction
A lightning conductor is a metal system designed to protect a building by providing a low-resistance path for electric charge to reach Earth safely.
Definition
Structure
It normally includes: * a metal rod or terminal near the top; * a thick conducting cable; * a good connection to Earth. If lightning strikes the system, the large current is directed through the conductor toward the ground rather than through the building structure.
Earthing
**Earthing** connects the conductor to Earth, which acts as a large charge reservoir.
Important Point
A lightning conductor does not “stop thunderstorms.” Its purpose is to reduce damage by providing a safer electrical path.
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Sticky Notes · Quick Revision
METAL PATH
EARTH CONNECTION
PURPOSE
- Reduce damage