Polarity mostly used in term electronic signal, electricity and magnetism. Suppose there are constant voltage, known as an electrical potential or electrical phenomenon , between 2 objects or points. In such a state of affairs, one among the objects or points (poles) has a lot of electrons than the opposite. The pole with comparatively a lot of electrons is alleged to possess negative polarity; the opposite is allotted positive polarity. If the 2 poles square measure connected by a conductive path like a wire, lepton result the negative pole toward the positive pole. This flow of charge carriers constitutes an electrical current. In physics, the theoretical direction of current flow is taken into account to be from positive to negative by convention, opposite to the flow of electrons.

In physics, polarity is Associate in Nursing attribute with 2 attainable values. ⁕An electrical charge will have either positive or negative polarity. ⁕A voltage or voltage between 2 points of an electrical circuit includes a polarity, describing that of the 2 points has the upper potential drop. ⁕A magnet includes a polarity, in this it's 2 poles represented as "north" and "south" pole. ⁕More typically, the polarity of an electrical or field of force may be viewed because the sign of the vectors describing the sphere. ⁕The spin of Associate in Nursing entity in quantum physics will have a polarity – parallel or anti-parallel to a given direction.

The movement of electrical charge carriers inevitably produces a field of force. Conversely, any field of force is that the results of the motion of charge carriers. during a static magnet, a field of force is created by the composite motions of electrons in geometrically aligned atoms. A field of force is characterized by poles known as north and south. Magnetic polarity refers to the orientation of those poles in area.