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Wire
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===Meaning===
[[File:Wires.png|right|300px|thumb|These wires can be used to build a circuit.]]
'''Wires''' are long pieces of metal covered in [[Plastic (Material)|plastic]].
===About Wires===
: Wires carry electricity which can hurt you.
: You should not touch a wire unless an adult says it is safe.
: If the [[Plastic (Material)|plastic ]] has come off a wire and you can see the metal you should tell an adult as soon as you can.
==Key Stage 2==
===Meaning===
A '''wire''' is a long piece of metal used to carry electricity. It is usually covered in [[Plastic (Material)|plastic]] to prevent [[Electrical Shock|electrical shocks]].
: Singular [[Noun]]: '''Wire'''
: '''Wires''' come in many sizes. The thicker the wire the more electricity it carries and the more dangerous it is.
: The [[metal]] inside a '''wire''' is an [[Electrical Conductor|electrical conductor]] which means electricity can pass through it easily.
: The [[Plastic (Material)|plastic]] covering the '''wire''' is an [[Electrical Insulator|electrical insulator]] which means electricity does not pass through it very easily.
==Key Stage 3==
: [[Wire]]s are [[heated]] by an [[Electrical Current|electrical current]] passing through them.
: [[Wire]]s are designed to be a low [[Electrical Resistance|resistance]] in order to allow an [[Electrical Current|electrical current]] through them without losing too much [[energy]] by [[heating]] the [[wire]]s.
===Magnetic Field of a Wire===
: When there is a [[Electrical Current|current]] in a [[wire]] the [[wire]] has a [[Magnetic Field|magnetic field]] which acts around that [[wire]].
{| class|[[File:MagneticFieldLinesWire.png|center|300px]]| style="wikitablepadding: 20px; height:20px; width:300px; text-align:left;"|The [[Magnetic Field|magnetic field]] of a [[Electrical Current|current]] carrying [[wire]].
|-
|[[File:RightHandThumbRule.png|center|300px]]
|}
The strength of the [[Magnetic Field|magnetic field]] of a [[wire]] depends on:
*The [[Electrical Current|current]] in the [[wire]] - The greater the [[Electrical Current|current]] the stronger the [[Magnetic Field|magnetic field]].
*The distance from the [[wire]] - The greater the distance from the [[wire]] the weaker the [[Magnetic Field|magnetic field]].
===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/019835939X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=019835939X&linkCode=as2&tag=nrjc-21&linkId=57e96876985fc39b1a3d8a3e3dc238b6 ''Wires, pages 54-55, 66-67, 69, 216-217, 229, GCSE Physics; Third Edition, Oxford University Press, AQA '']
====OCR====
:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Wires; Characteristic graph for, page 106, Gateway GCSE Physics, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Wires; Electrons, pages 105, Gateway GCSE Physics, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Wires; Forces on, page 126-127, Gateway GCSE Physics, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Wires; Magnetic fields, pages 122-123, Gateway GCSE Physics, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Wires; Spinning coils, pages 122-123, Gateway GCSE Physics, Oxford, OCR '']