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===About Resistance===
: The [[SI Unit|unit]] of '''resistance''' is the [[Ohm]] ([[Ω]]).
: '''Resistance''' cannot be directly [[measure]]d. '''Resistance''' must be calculated by dividing the [[Potential Difference]] by the [[Electrical Current|Current]].
: [[Electrical Conductor|Conductors]] have a low '''resistance''' and [[Electrical Insulator|insulator]]s have a high '''resistance'''.
: '''Resistance''' in a [[wire]] is caused by [[electron]]s colliding with [[Positive Ion|positive ion]]s in the [[metal]] [[lattice]].
{| class="wikitable"
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|[[File:Picture.png|center|500px]]
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| style="height:20px; width:200px; text-align:center;" |This [[diagram]] shows [[electron]]s moving past the [[Positive Ion|positive ions]] in a [[metal]] [[lattice]]. As they move some of them collide with the [[Positive Ion|positive ions]] in the [[lattice]] which is acts as a '''resistance''' to an [[Electrical Current|electrical current]].
|}
: The higher the [[temperature]] of a [[Electrical Conductor|conductor]] the higher the '''resistance''' of that [[Electrical Conductor|conductor]]. This is due to the [[metal]] [[ion]]s vibrating faster at higher [[temperature]]s which makes [[electron]]s more likely to collide with the [[ion]]s as they pass through the [[Electrical Conductor|conductor]].
===Equation===