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===Examples===
{| class="wikitable"
|-
|[[File:IVGraphResistor.png|center|300px]]
|[[File:IVGraphBulb.png|center|300px]]
|-
| style="height:20px; width:200px; text-align:center;" |The '''IV graph''' for a [[resistor]] shows that [[Electrical Current|current]] is [[Directly Proportional|directly proportional]] to [[Potential Difference|potential difference]].
| style="height:20px; width:200px; text-align:center;" |The '''IV graph''' for a [[Electrical Bulb|bulb]] shows that as the [[Potential Difference|potential difference]] increases the [[Electrical Current|current]] increases. However, at large [[Potential Difference|potential differences]] a change in [[Potential Difference|potential difference]] causes a smaller increase in [[Electrical Current|current]] for a change at small [[Potential Difference|potential differences]].
|-
|[[File:IVGraphDiode.png|center|300px]]
|[[File:IVGraphLDR.png|center|300px]]
|-
| style="height:20px; width:200px; text-align:center;" |The '''IV graph''' for a [[diode]] shows that for a positive [[Potential Difference|potential difference]] the [[Electrical Current|current]] increases rapidly with an increase in [[Potential Difference|potential difference]] while for a negative [[Potential Difference|potential difference]] the [[Electrical Current|current]] remains negligible and does not increase as the [[Potential Difference|potential difference]] becomes larger.
| style="height:20px; width:200px; text-align:center;" |The '''IV graph''' for a [[Light Dependent Resistor|light dependent resistor]] shows that at a high [[light]] intensity the [[Electrical Current|current]] increases rapidly with the [[Potential Difference|potential difference]] whereas at a low [[light]] intensity the [[Electrical Current|current]] increases slowly with the [[Potential Difference|potential difference]].
|}
===References===
====Edexcel====
:[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''I-V graphs, page 187, GCSE Combined Science; The Revision Guide, CGP, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1782945733/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945733&linkCode=as2&tag=nrjc-21&linkId=2a2dbec9db6bf5766c0458d908fa0a52 ''I-V graphs, page 74, GCSE Physics; The Revision Guide, CGP, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''I-V graphs, pages 227-229, GCSE Physics, CGP, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''I-V graphs; diodes, page 229, GCSE Physics, CGP, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''I-V graphs; filament lamps, page 228, GCSE Physics, CGP, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''I-V graphs; fixed resistors, page 228, GCSE Physics, CGP, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''I-V graphs; LDRs, page 229, GCSE Physics, CGP, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''I-V graphs; thermistors, page 229, GCSE Physics, CGP, Edexcel '']
====OCR====
:[https://www.amazon.co.uk/gp/product/1782945687/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945687&linkCode=as2&tag=nrjc-21&linkId=9a598e52189317a20311d7a632747bc9 ''I-V graphs, pages 45-47, Gateway GCSE Physics; The Revision Guide, CGP, OCR '']