IV Graph - Revision history

Ellen References at 16:21, 13 December 2019

2019-12-13T16:21:49Z

Ellen References at 17:56, 21 November 2019

2019-11-21T17:56:50Z

NRJC: /* Examples */

2019-02-28T14:35:42Z

‎Examples

NRJC at 13:46, 28 February 2019

2019-02-28T13:46:14Z

NRJC: /* About IV Graphs */

2019-02-28T13:45:58Z

‎About IV Graphs

NRJC: Created page with "==Key Stage 4== ===Meaning=== An '''IV graph''' is a graph showing how the current (I) through a component changes with the..."

2019-02-28T13:45:48Z

Created page with "==Key Stage 4== ===Meaning=== An '''IV graph''' is a graph showing how the current (I) through a component changes with the..."

New page

==Key Stage 4==
===Meaning===
An '''IV graph''' is a [[graph]] showing how the [[Electrical Current|current]] (I) through a [[Electrical Component|component]] changes with the [[Potential Difference|potential difference]] (V) across [[Electrical Component|component]].

===About IV Graphs===
: On an '''IV graph'' the [[Potential Difference|potential difference]] is plotted on the [[x-axis]] and the [[Electrical Current|current]] is plotted on the [[y-axis]].
: An '''IV graph''' can be used to identify the characteristics of an unknown [[Electrical Component|electrical component]]. This may be useful when inventing new [[Electrical Component|components]].
: The [[Electrical Resistance|resistance]] of an [[Electrical Component|component]] can change with the [[Electrical Current|current]] or the [[Potential Difference|potential difference]].
: The [[Electrical Resistance|resistance]] of a [[Electrical Component|component]] can be found by taking the [[ratio]] of [[Potential Difference|potential difference]] to [[Electrical Current|current]] at a point on the curve.

===Examples===

← Older revision		Revision as of 16:21, 13 December 2019
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	:[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; 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 '']		:[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 '']

← Older revision		Revision as of 17:56, 21 November 2019
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	\| 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]].		\| 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 '']

← Older revision		Revision as of 14:35, 28 February 2019
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	===Examples===		===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]].
		+	\|}

@@ Line 7: / Line 7: @@
 : An '''IV graph''' can be used to identify the characteristics of an unknown [[Electrical Component|electrical component]]. This may be useful when inventing new [[Electrical Component|components]].
 : The [[Electrical Resistance|resistance]] of an [[Electrical Component|component]] can change with the [[Electrical Current|current]] or the [[Potential Difference|potential difference]].
-: The [[Electrical Resistance|resistance]] of a [[Electrical Component|component]] can be found by taking the [[ratio]] of [[Potential Difference|potential difference]] to [[Electrical Current|current]] at a point on the curve.
+: The [[Electrical Resistance|resistance]] of a [[Electrical Component|component]] can be found by taking the [[ratio]] of [[Potential Difference|potential difference]] to [[Electrical Current|current]] at a point on the curve of an '''IV graph'''.
 ===Examples===

@@ Line 4: / Line 4: @@
 ===About IV Graphs===
-: On an '''IV graph'' the [[Potential Difference|potential difference]] is plotted on the [[x-axis]] and the [[Electrical Current|current]] is plotted on the [[y-axis]].
+: On an '''IV graph''' the [[Potential Difference|potential difference]] is plotted on the [[x-axis]] and the [[Electrical Current|current]] is plotted on the [[y-axis]].
 : An '''IV graph''' can be used to identify the characteristics of an unknown [[Electrical Component|electrical component]]. This may be useful when inventing new [[Electrical Component|components]].
 : The [[Electrical Resistance|resistance]] of an [[Electrical Component|component]] can change with the [[Electrical Current|current]] or the [[Potential Difference|potential difference]].