Answer :
Final answer:
A coulomb, the SI unit for charge, is equal to the charge of 6.25 × 10^18 electrons. The smallest possible charge is 1.602 × 10-19 C, known as the elementary charge. This unit of charge is integral to understanding concepts like current in physics.
Explanation:
A coulomb (C) is the SI unit for charge, with protons and electrons having charges of opposite sign but equal magnitude. Specifically, the charge on a proton is +1.602 x 10-19 C, and the charge on an electron is -1.602 x 10-19 C. This signifies that 6.25 × 10^18 electrons would have a combined charge of -1.00 coulomb, illustrating that all observed charges are integral multiples.
The principal of quantization of charge posits that charge comes in discrete amounts, with 1.602 × 10-19 C being the smallest amount possible, signifying that the charge on any object must be an integer multiple of this basic unit of charge.
Understanding this concept becomes vital in the study of physics and electronics current. An ampere, another fundamental unit in electrical studies, signifies the flow of one coulomb of charge through an area in one second. Therefore, a current of one amp corresponds to the flow of 6.25 × 10^18 electrons each second.
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