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==Key Stage 3==
===Meaning===
A long thick piece of [[metal]] [[wire]], usually covered in [[Plastic (Material)|plastic]] for [[Electrical Insulator|insulation]], that is used to guide [[Electrical Current|electrical current]].
==Key Stage 4==
===Meaning===
A long thick piece of [[metal]] [[wire]], usually covered in [[Plastic (Material)|plastic]] for [[Electrical Insulator|insulation]], that is used to guide [[Electrical Current|electrical current]].