- #1
Rishabh Narula
- 61
- 5
"Suppose we have another
ther charge some distance away.
Would it feel any attraction? It would feel practically
none, because if the first two are equal in size,
the attraction for the one and the repulsion for
the other balance out.Therefore there is very little
force at any appreciable distance. On the other hand,
if we get very close with
the extra charge, attraction arises, because the repulsion
of likes and attraction of unlikes will tend to bring
unlikes closer together and push
likes farther apart.
Then the repulsion will be less than the attraction.
This is the reason why the
atoms, which are constituted out of plus and minus
electric charges, feel very
little force when they are separated by appreciable
distance (aside from gravity).
When they come close together, they can “see inside”
each other and rearrange
their charges, with the result that they have a very strong interaction."
- from feynman lectures vol. 1 Chapter 2 topic 2-2
i sort of get it till he's talking how there would be little
force at appreciable distance.But What does the lines -
"attraction arises, because the repulsion
of likes and attraction of unlikes will tend to bring
unlikes closer together and push
likes farther apart." mean exactly?
what exactly is repelling and attracting what?
is the extra charge attracting charges opposite to it
and what is then repelling what?
the whole thing is hard to visulise if someone can link
a photo or video it would be great too.thanks.
ther charge some distance away.
Would it feel any attraction? It would feel practically
none, because if the first two are equal in size,
the attraction for the one and the repulsion for
the other balance out.Therefore there is very little
force at any appreciable distance. On the other hand,
if we get very close with
the extra charge, attraction arises, because the repulsion
of likes and attraction of unlikes will tend to bring
unlikes closer together and push
likes farther apart.
Then the repulsion will be less than the attraction.
This is the reason why the
atoms, which are constituted out of plus and minus
electric charges, feel very
little force when they are separated by appreciable
distance (aside from gravity).
When they come close together, they can “see inside”
each other and rearrange
their charges, with the result that they have a very strong interaction."
- from feynman lectures vol. 1 Chapter 2 topic 2-2
i sort of get it till he's talking how there would be little
force at appreciable distance.But What does the lines -
"attraction arises, because the repulsion
of likes and attraction of unlikes will tend to bring
unlikes closer together and push
likes farther apart." mean exactly?
what exactly is repelling and attracting what?
is the extra charge attracting charges opposite to it
and what is then repelling what?
the whole thing is hard to visulise if someone can link
a photo or video it would be great too.thanks.