Conventional current flow theory explains the direction of electric current from positive to negative, established before the discovery of electrons. Benjamin Franklin's contributions in defining positive charge movement are significant for understanding current flow. Electrons are the actual charge carriers in metals, moving opposite to conventional current flow.
Conventional current flow theory states that electric current flows from the positive side of the source, through the load, to the negative side of the source. This concept was developed before the discovery of electrons and is based on the movement of positive charges.
Benjamin Franklin was a key figure in establishing this theory in the 1700s, naming positive charges as the direction of current flow. However, we now know that in reality, electrons are the charge carriers in metals, moving in the opposite direction to conventional current flow.
While conventional flow is used for historical reasons in most analyses, the electron flow model is closer to the actual movement of charges in materials like metals.
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