What Is Electric Charge


What Is Electric Charge


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  • We know that an atom consists of electron, protons, and neutrons.

  • Each electron has a negative charge and each proton has a positive charge.

  • a neutron carries no charge and is therefore neutral.

  • In an atom, the number of electrons is equal to the number of protons and the atom is electrically neutral.

  • electrons may be added to or taken away from an atom.

  • this disturbs the electrical balance of the atom.

  • If an atom loses an electron it is left with an overall positive charge, since it has a proton in excess of those needed to balance the effect of its electrons.

  • such a charged atom is called a positive ion.

  • If an electron is added to an atom, it attains a negative charge. Such a charged atom is called a negative ion. A body having a number of ionized atoms is said to be electrically charged.

  • The SI unit of charge is the coulomb [C]

  • the measure of charge moved by one ampère of current in one moment of time [A s].

  • The thinking behind this definition is best left to later sections in this book.

  • an uncommonly enormous unit for everyday applications.


Elementary Charge



  • 1.60 × 10−19 coulombs

  • the size of the charge on an electron or proton

  • A charge is quantized in products of the basic charge.


Conservation of Charge



  • The complete charge of a shut framework is steady.

  • The universe is a shut framework.

  • At the point when subatomic particles are made, they don't include or subtract charge from the universe in general.



 

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