|Feb1-13, 05:34 AM||#18|
Question regarding Coulomb's Law
But actually i am unable to picture how the forces will act on the metal. The force acts on the electrons so how would that enable the whole object to accelerate? And also for the nucleus a force is acting on it but unlike the electrons they don't move. I can't seem to resolve this issue and it's causing some confusion.
Thanks for the help :)
|Feb1-13, 10:28 PM||#19|
The external charge brought close to the metal rod acts on all constituents, both ions and electrons. Also all particles of the metal interact with each other. Every particle feels a force from the external charge (external force) and forces of interaction from the other particles. The interaction forces keep the ions and electrons together and make the metal move as a single body. The sum of all external forces determine the acceleration of the rod as whole.
The external negative charge attracts the ions and repels the electrons. That force of repulsion is a bit smaller than the attraction as the electrons are accumulated in the farther part of the rod. So the net force on the rod as whole is attractive.
Discussion like that would be better on the forum "General Physics". This is not homework.
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