Why can
not the original comb pull the paper can pull the paper after being rubbed
scrape the hair? Before comb rubbed rubbing on the hair, comb is neutral (no electrical
charge) so it can not pull scraps of paper. After rubbing a comb rubbed on the
hair, comb becomes electrically charged, so it can pull scraps of paper.
The
process is electrically charged comb can pull scraps of paper can be explained
as follows. In most neutral atoms or molecules, the center of positive charge
coincides with the center of negative charge. When the insulator (example
scraps of paper) is approached by electrically charged objects (for example,
positively charged comb), the center of negative charge is pulled closer to the
positively charged object. This will result in a positive charge. Thus, it will
produce more negative charge on the side adjacent to the object giving the
charge. This produces a more negative charge on the side adjacent to the object
giving the charge. Different cargo types produces attractive forces that can be
attached to the insulator electrically charged objects.
Electric
charge is a basic entity and to be excellent in electrostatics. Electric charge
can be transferred from one object to another by brushing or other means, but
the charge can not be created or destroyed. There are two types of charges:
positive and negative. Similar payload is repelling, and the cargo was to be a
kind of attraction.
Coulomb's
law is the law that describes the relationship between the force arising
between two point charges, separated a certain distance, the value of the
charge and the distance separating the two.
This
law states if there are two point charges will arise between the two styles,
the amount of which is proportional to the multiplication of the value of the
two charges and inversely proportional to the square of the distance between
them. The interaction between charged objects (not just a point charge) occurs
through non-contact style that works beyond the separation distance. The other
thing to note is that the direction of the force on each charge is always along
the line connecting the two charges. Force that arises can make a second point
charge of mutual attraction or repel each other, depending on the value of each
charge. Payload type (same sign) will repel each other, while different types
of cargo each other attraction.
Coulomb force
is an interaction force between electrically charged particles. The forces that
are experienced by a person in daily life are mainly the gravitational force
and electromagnetic forces. The gravitational force is weaker by a factor of
approximately 10 than the Coulomb force. Why is it that in daily life we more
often experience the gravitational force than the Coulomb force? The answer is
simple, namely because most materials are electrically neutral. The roles of
Coulomb force in quantum physics are: (1) as an electric force that functions
to bind the electrons of an atom to the nucleus (the atom’s nucleus is
positively charged); (2) as a force that binds several atoms to form a
molecules; (3) as a force that binds atoms inside molecules to form a solid or
a liquid. |
| Charles-Augustin de Coulomb |
You may note
that inside an atom’s nucleus, protons and neutrons making up the nucleus are
bound together by a kind of attractive force called the nuclear force.
What would happen if this nuclear force was not existent? The atom’s nucleus
would be suddenly separated because a strong attractive Coulomb force works on
the positively charged protons.