Difference between revisions of "Direct Current"
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==Key Stage 4== | ==Key Stage 4== | ||
===Meaning=== | ===Meaning=== | ||
− | '''Direct current''' ('''DC''')is when [[electricity]] | + | '''Direct current''' ('''DC''')is when [[electricity]] flows constantly in one direction. |
===About Direct Current=== | ===About Direct Current=== | ||
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: '''Direct current''' is needed to charge a [[Electrical Cell|cell]] or [[battery]]. | : '''Direct current''' is needed to charge a [[Electrical Cell|cell]] or [[battery]]. | ||
: '''Direct current''' is used in [[electrolysis]]. | : '''Direct current''' is used in [[electrolysis]]. | ||
+ | : A constant '''direct current''' cannot be used in a [[Electrical Transformer|transformer]]. | ||
===Examples=== | ===Examples=== | ||
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| style="height:20px; width:290px; text-align:center;" |This is the '''direct current''' caused by [[Mains Electricity|mains electricity]] being passed through a [[Rectifier]] which is a set of [[diode]]. | | style="height:20px; width:290px; text-align:center;" |This is the '''direct current''' caused by [[Mains Electricity|mains electricity]] being passed through a [[Rectifier]] which is a set of [[diode]]. | ||
|} | |} | ||
+ | |||
+ | |||
+ | ===References=== | ||
+ | ====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 ''Direct current (d.); generation of, pages, 235, GCSE Physics, Hodder, 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 ''Direct current (d.c), page 305, GCSE Combined Science Trilogy 1, 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 ''Direct current (d.c), page 50, GCSE Physics, 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 ''Direct current, pages 64, 225, GCSE Physics; Third Edition, Oxford University Press, 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=ad276ad49df77ab4b40ab4fd0fe09848 ''Direct currents (d.c.), page 188, GCSE Combined Science; The Revision Guide, CGP, 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 ''Direct currents (dc), page 86, GCSE Combined Science Trilogy; Physics, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac92 ''Direct currents (dc), pages 31, 97, GCSE Physics; The Revision Guide, 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 ''Direct currents (dc), pages 89, 306, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA ''] | ||
+ | |||
+ | ====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 ''Direct current (d.c.), page 397, GCSE Combined Science, Pearson 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 ''Direct current (d.c.), pages 157, 175, GCSE Physics, Pearson 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 ''Direct current, page 192, 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 ''Direct current, page 79, 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 ''Direct currents, page 246, GCSE Physics, CGP, Edexcel ''] | ||
+ | |||
+ | ====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 ''Direct current, page 214, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR ''] |
Latest revision as of 17:12, 25 January 2020
Contents
Key Stage 4
Meaning
Direct current (DC)is when electricity flows constantly in one direction.
About Direct Current
- Direct current is produced by electrical cells, batteries and dynamos.
- Direct current can be made from an alternating current using a diode.
- Direct current is needed to charge a cell or battery.
- Direct current is used in electrolysis.
- A constant direct current cannot be used in a transformer.
Examples
This is a constant direct current from a 3V battery. | This is a fluctuating direct current. |
This is the direct current caused by mains electricity being passed through a diode. | This is the direct current caused by mains electricity being passed through a Rectifier which is a set of diode. |
References
AQA
- Direct current (d.); generation of, pages, 235, GCSE Physics, Hodder, AQA
- Direct current (d.c), page 305, GCSE Combined Science Trilogy 1, Hodder, AQA
- Direct current (d.c), page 50, GCSE Physics, Hodder, AQA
- Direct current, pages 64, 225, GCSE Physics; Third Edition, Oxford University Press, AQA
- Direct currents (d.c.), page 188, GCSE Combined Science; The Revision Guide, CGP, AQA
- Direct currents (dc), page 86, GCSE Combined Science Trilogy; Physics, CGP, AQA
- Direct currents (dc), pages 31, 97, GCSE Physics; The Revision Guide, CGP, AQA
- Direct currents (dc), pages 89, 306, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
Edexcel
- Direct current (d.c.), page 397, GCSE Combined Science, Pearson Edexcel
- Direct current (d.c.), pages 157, 175, GCSE Physics, Pearson Edexcel
- Direct current, page 192, GCSE Combined Science; The Revision Guide, CGP, Edexcel
- Direct current, page 79, GCSE Physics; The Revision Guide, CGP, Edexcel
- Direct currents, page 246, GCSE Physics, CGP, Edexcel