  Magnetic Monopole is a cosequence of the existence of the duality symmetry in
electromagnetics. Although, no conclusive experimental evidence have so far
been found but the subject is still of much interest to physicist. The theory
of magnetic monopoles was first proposed by Dirac in 1931 and soon after it was
studied by physicist of many deciplines specially particle physics, quantum
field theory and non-linear Soliton equations. One important consequence of the
magnetic monopole theory is the quantization of the electric charge which was
first derived by Dirac. In the definition of the classicaql magnetic monopole,
the concept of Dirac string is used. dirac string is the locus of the points
where the vector potential is nopt well-behave. On the other hand by
introducing the idea of magnetic monopoles, Maxwell's equations became
symmetrical with respect to the magnetic and electric fields, but they still
remain unsymmetrical as far as the scalar and the vector potentials are
concerned. In this work the electric and magnetic fields are redifined in
termes of some new scalar and vector potentials, respectively, as a result of
which the Maxwell's equations become symmetrical with respect to the
potentials, too. One advantage of using this formulation is that one can
discard the Dirac string all together. Finally, definition of the new
potentials guarantees the lorentz invariance of equations.
