Electricity                                             Negative charge (-)
    It is the set of physical phenomena                   It has more electrons than protons
     associated with the presence and flow of               (Ne>Np).
     electric charge.                                      Negative charge attracts other positive
    It is a form of energy. Also, it is the flow           charges and repels other negative charges.
     of electrons.                                         The negative charge is attracted by other
    It gives a wide variety of well-known                  positive charges and repelled by other
     effects, such as lightning, static electricity,        negative charges.
     electromagnetic induction and electric
     current.                                                        Charge of elementary particles
                                                              Particle        Charge (C)       Charge (e)
                                                             Electron        1.602×10-19 C          -e
Electric Charge (Q)
                                                             Proton          1.602×10-19 C         +e
                                                             Neutron              0C                0
    It is a property of some subatomic
     particles,    which      determines       their
     electromagnetic interactions.                      Coulomb"s Law
    Electric charge generates electric field.
                                                           It describes force interacting between
     The electric charge influence other electric
                                                            static electrically charged particles.
     charges with electric force and influenced
                                                           It states that the force between two
     by the other charges with the same force in
                                                            charges is proportional to the amount of
     the opposite direction.
                                                            charge on both charges and inversely
    The SI unit of electric charge is the
                                                            proportional to the square of the distance
     coulomb (C). One coulomb has the charge
                                                            between them.
     of 6.242×1018 electrons: 1C = 6.242×1018
     e                                                          k . q1 . q2
                                                            Where, F = Force
Q is the electric charge, measured in coulombs              k = a constant, 8.988×109 N·m2/C2
                                                            q1 = charge one
I is the current, measured in amperes [A].                  q2 = charge two
t is the time period, measured in seconds [s].              r = distance between the two charges
There are 2 types of electric charge:                   Electric Current (I)
                                                           An electric current is a flow of electric
Positive charge (+)
    It has more protons than electrons                    In electric circuits this charge is often
     (Np>Ne).                                               carried by moving electrons in a wire.
    The positive charge attracts other negative           It can also be carried by ions in an
     charges and repels other positive charges.             electrolyte, or by both ions and electrons
    The positive charge is attracted by other              such as in a plasma.
     negative charges and repelled by other                It measured in amperes.
     positive charges.