What Is Electric Charge
- 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.
- 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.