The study of Economics as a discipline of Social Sciences has attracted a significant number of cross - disciplinary researches. A lot of emphasis has been bestowed upon the applications and implementations of the universal laws and results approved by the 'natural' disciplines of Physical Sciences like Physics, Chemistry and Biological Sciences in different specializations of Economics in order to check their validity by incorporating variables (both dependent and independent) in terms of Economic models which bear close proximities to the 'original' variables mentioned in those universal laws and results of the various disciplines of Physical Sciences. This research paper is aimed at fulfilling three major objectives with reference to the discipline of Physics: a)To formulate and enumerate Force of Trading (FT) by keeping parity with the Electromotive Force (emf), b)To formulate and enumerate Trading Field (TF) by keeping parity with the Magnetic Field, and c)To formulate and enumerate Transfer of Gains from Trade (TGT) by keeping parity with the theory of transmission of heat by conduction. In order to serve the purposes, regression models are tested by using OLS method across 13 major economies across the globe for the time - period of 20 years (1994 - 2013).