flippineck
- Sep 8, 2013
- 358
- Joined
- Sep 8, 2013
- Messages
- 358
Reading a discourse on the nature of the electric field, I keep running into discussions of discrete charges 'creating' an electric field in the space surrounding them.
http://www.physicsclassroom.com/Class/estatics/u8l4a.cfm
https://van.physics.illinois.edu/qa/listing.php?id=414
Is it such that a region of space with absolutely no charges within it or significantly near it, does not contain an electric field - i.e. that an electric field is only present near to some particle giving rise to it, and outside some defined boundary, there is no actual field?
Or, is there a single, all-pervasive and essentially stable and uniform electric field throughout the universe, and what is often referred to in basic texts as 'the electric field' of any given system, is simply the local disturbance caused by that system, within that larger pan-universal electric field?
Whichever, surely the field must be composed of something tangible. What is that something?
Same questions apply to magnetic fields
Any why and how, are the two fields electric and magnetic, linked?
If anybody has any good links that help understanding for the mathematically dyslexic layman like myself could you let me know..
http://www.physicsclassroom.com/Class/estatics/u8l4a.cfm
https://van.physics.illinois.edu/qa/listing.php?id=414
Is it such that a region of space with absolutely no charges within it or significantly near it, does not contain an electric field - i.e. that an electric field is only present near to some particle giving rise to it, and outside some defined boundary, there is no actual field?
Or, is there a single, all-pervasive and essentially stable and uniform electric field throughout the universe, and what is often referred to in basic texts as 'the electric field' of any given system, is simply the local disturbance caused by that system, within that larger pan-universal electric field?
Whichever, surely the field must be composed of something tangible. What is that something?
Same questions apply to magnetic fields
Any why and how, are the two fields electric and magnetic, linked?
If anybody has any good links that help understanding for the mathematically dyslexic layman like myself could you let me know..
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