Difference between revisions of "Dynamo"
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| + | :[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 ''Dynamos, page 56, Gateway GCSE Physics; The Revision Guide, CGP, 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 ''Dynamos, pages 133, Gateway GCSE Physics, Oxford, OCR ''] | ||
Latest revision as of 01:21, 5 December 2019
Contents
Key Stage 4
Meaning
A dynamo is a device used to generate Direct electrical current.
About Dynamos
- A dynamo is just a D.C. Motor working in reverse. By spinning the motor it generates a direct current.
- Dynamos use the generator effect to generate and electrical current.
- Dynamos are used simple circuits which charge cells and batteries.
 |
| This diagram shows a dynamo which has a moving coil of wire rotating through a magnetic field.
Due to the split ring commutator the direction of the current remains constant at the output. |
References
AQA
- Dynamo, pages 261-62, GCSE Physics; Student Book, Collins, AQA
- Dynamos, page 225, GCSE Physics; Third Edition, Oxford University Press, AQA
- Dynamos, page 235, GCSE Physics, Hodder, AQA
- Dynamos, page 305, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
- Dynamos, page 97, GCSE Physics; The Revision Guide, CGP, AQA
Edexcel
- Dynamo, page 175, GCSE Physics, Pearson Edexcel
- Dynamos, page 90, GCSE Physics; The Revision Guide, CGP, Edexcel
- Dynamos, pages 282, 283, GCSE Physics, CGP, Edexcel