Conventional Current and Electric current
In the beginning of study of current, many well-known scientists believed that current is flow of positive charges(Protons) And direction of the current was believed to be from positive terminal to negative terminal this concept emerge when electrons were not discovered, and there was very little knowledge of negative charge carriers(Neutrons), This concept of current is known as conventional current in which current is defined as flow of positive charge carrier(protons) But after the discovery of negative charge carriers(electrons) the concept of current was ultimately changed and then current was considered as flow of electrons till now and the direction of current can be determined as from high potential to low potential,Actually both definitions of current are equivalent to each other because the number of electrons flow from one point to other is same as the number of protons flow exactly to opposite it i,e Electrons flow from negative terminal to positive terminal can also be considered as protons flow from positive terminal to negative terminal.
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