Diode - Revision history

Ellen References at 15:40, 4 December 2019

2019-12-04T15:40:29Z

Ellen References at 15:16, 17 November 2019

2019-11-17T15:16:02Z

Ellen References at 09:16, 4 November 2019

2019-11-04T09:16:05Z

NRJC at 18:16, 28 February 2019

2019-02-28T18:16:45Z

NRJC at 15:05, 28 February 2019

2019-02-28T15:05:36Z

NRJC at 14:56, 28 February 2019

2019-02-28T14:56:05Z

NRJC at 14:55, 28 February 2019

2019-02-28T14:55:38Z

NRJC: Created page with "==Key Stage 4== ===Meaning=== The symbol for a '''diode'''. A '''diode''' is an electrical component which..."

2019-02-27T21:28:46Z

Created page with "==Key Stage 4== ===Meaning=== right|300px|thumb|The symbol for a '''diode'''. A '''diode''' is an electrical component which..."

New page

==Key Stage 4==
===Meaning===
[[File:DiodeSymbol.png|right|300px|thumb|The symbol for a '''diode'''.]]
A '''diode''' is an [[Electrical Component|electrical component]] which only allows [[electricity]] through in one direction.

===About Diodes===
: [[Diode]]s have a low [[Electrical Resistance|resistance]] in one direction but a very high [[Electrical Resistance|resistance]] in the reverse direction.
: [[Diode]]s can be used to change an [[Alternating Current|alternating current]] into a [[Direct Current|direct current]].

← Older revision		Revision as of 15:40, 4 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 ''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 ''Diodes, page 229, GCSE Physics, CGP, Edexcel '']
	:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Diodes, page 388, GCSE Combined Science, Pearson Edexcel '']		:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Diodes, page 388, GCSE Combined Science, Pearson Edexcel '']
		+
		+	====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 ''Diodes, pages 107, Gateway GCSE Physics, Oxford, OCR '']
		+	:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Diodes, pages 176, 179, Gateway GCSE Combined Science; The Revision Guide, CGP, 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 ''Diodes, pages 45-47, Gateway GCSE Physics; The Revision Guide, CGP, OCR '']

← Older revision		Revision as of 15:16, 17 November 2019
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	:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Diodes, pages 62, 68, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']		:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Diodes, pages 62, 68, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']
	:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Diodes; circuit symbol, page 38, GCSE Physics, Hodder, AQA '']		:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Diodes; circuit symbol, page 38, GCSE Physics, Hodder, AQA '']
		+
		+	====Edexcel====
		+
		+	:[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Diodes, page 148, GCSE Physics, Pearson 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 ''Diodes, page 229, GCSE Physics, CGP, Edexcel '']
		+	:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Diodes, page 388, GCSE Combined Science, Pearson Edexcel '']

← Older revision		Revision as of 09:16, 4 November 2019
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	#Reverse the connections on the [[battery]] and repeat steps 4 and 5 to find the I-V relationship for negative [[Potential Difference\|potential difference]] and [[Electrical Current\|current]].		#Reverse the connections on the [[battery]] and repeat steps 4 and 5 to find the I-V relationship for negative [[Potential Difference\|potential difference]] and [[Electrical Current\|current]].
	\|}		\|}
		+
		+	===References===
		+	====AQA====
		+
		+	:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Diode, pages 52-3, 65, GCSE Physics; Student Book, Collins, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Diodes, page 43, GCSE Physics, Hodder, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe09847 ''Diodes, pages 180, 181, 183, GCSE Combined Science; The Revision Guide, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac91 ''Diodes, pages 24, 26, GCSE Physics; The Revision Guide, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Diodes, pages 293, 298, GCSE Combined Science Trilogy 1, Hodder, 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 ''Diodes, pages 52-53, 57, GCSE Physics; Third Edition, Oxford University Press, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1782946403/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946403&linkCode=as2&tag=nrjc-21&linkId=32a0abb60dff015b15b50e9b1d7b4644 ''Diodes, pages 60, 66, GCSE Combined Science Trilogy; Physics, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Diodes, pages 62, 68, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Diodes; circuit symbol, page 38, GCSE Physics, Hodder, AQA '']

← Older revision		Revision as of 18:16, 28 February 2019
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	====Explanation====		====Explanation====
	: The [[Electrical Resistance\|resistance]] of a [[diode]] is very low for [[Electrical Current\|current]] in the forward direction and very high in the back direction.		: The [[Electrical Resistance\|resistance]] of a [[diode]] is very low for [[Electrical Current\|current]] in the forward direction and very high in the back direction.
		+
		+	====Obtaining the IV Graph====
		+	{\| class="wikitable"
		+	\|-
		+	\|[[File:DiodeIVGraphCircuit.png\|center\|300px]]
		+	\| style="height:20px; width:300px; text-align:left;" \|
		+	#Connect an [[ammeter]] in [[Series Circuit\|series]] with the [[diode]] to measure [[Electrical Current\|current]] through the [[diode]].
		+	#Connect a [[voltmeter]] in [[Parallel Circuit\|parallel]] with the [[diode]] to measure the [[Potential Difference\|potential difference]] across it.
		+	#Use a [[Variable Resistor\|variable resistor]] in [[Series Circuit\|series]] with the [[diode]] to vary the [[Potential Difference\|potential difference]] across the [[diode]].
		+	#Start with a [[Potential Difference\|potential difference]] of zero and increase the [[Potential Difference\|potential difference]] by an interval of 0.2V up to 2V.
		+	#Recording the reading on the [[voltmeter]] and [[ammeter]].
		+	#Reverse the connections on the [[battery]] and repeat steps 4 and 5 to find the I-V relationship for negative [[Potential Difference\|potential difference]] and [[Electrical Current\|current]].
		+	\|}

← Older revision		Revision as of 15:05, 28 February 2019
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	*For a positive [[Potential Difference\|potential difference]] the [[Electrical Current\|current]] increases rapidly with an increase in [[Potential Difference\|potential difference]]		*For a positive [[Potential Difference\|potential difference]] the [[Electrical Current\|current]] increases rapidly with an increase in [[Potential Difference\|potential difference]]
	*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.		*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.
		+
		+	====Explanation====
		+	: The [[Electrical Resistance\|resistance]] of a [[diode]] is very low for [[Electrical Current\|current]] in the forward direction and very high in the back direction.

@@ Line 8: / Line 8: @@
 : [[Diode]]s can be used to change an [[Alternating Current|alternating current]] into a [[Direct Current|direct current]].
 {| class="wikitable"
 |[[File:IVGraphDiode.png|center|400px]]
@@ Line 13: / Line 14: @@
 ====Description====
-The '''IV graph''' for a [[diode]] shows that:
+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]]
 *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.

← Older revision		Revision as of 14:55, 28 February 2019
Line 7:		Line 7:
	: [[Diode]]s have a low [[Electrical Resistance\|resistance]] in one direction but a very high [[Electrical Resistance\|resistance]] in the reverse direction.		: [[Diode]]s have a low [[Electrical Resistance\|resistance]] in one direction but a very high [[Electrical Resistance\|resistance]] in the reverse direction.
	: [[Diode]]s can be used to change an [[Alternating Current\|alternating current]] into a [[Direct Current\|direct current]].		: [[Diode]]s can be used to change an [[Alternating Current\|alternating current]] into a [[Direct Current\|direct current]].
		+
		+	{\| class="wikitable"
		+	\|[[File:IVGraphDiode.png\|center\|400px]]
		+	\|}
		+
		+	====Description====
		+	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]]
		+	*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.