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Chapter One: Electrostatic
Figure 3 Charging by contact.
Figure 4 Charging by contact and subsequent separation.
Electricity is a manifestation associated with the fundamental electrical charge found
within the atom, particularly electrons. They are the “carriers” of electric charges
and represent the electrical elementary charge. The transport of charge is always
represented by an electric current. To explain the physical properties of atoms, the
model of Niels Bohr is used here. Accordingly, an atom consists of a nucleus
containing positively charged protons and uncharged neutrons, orbited by a like number
of negatively charged electrons. The number of orbiting electrons (negative charge)
University of Babylon/ College of Science Department of Physics
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