One electron possesses a charge of 1.6 ×10-19C, i.e., 1.6 ×10-19C of charge is contained in 1 electron. Therefore, 6 x 1018 electrons constitute one coulomb of charge.

Introduction:

To calculate the number of electrons in one coulomb of charge, we need to understand the concept of charge and the charge of an electron.

Charge:

Charge is a fundamental property of matter that describes the amount of electric force between particles. It can be positive or negative, and like charges repel each other while opposite charges attract each other. The unit of charge is the coulomb (C), named after the French physicist Charles-Augustin de Coulomb.

Charge of an Electron:

The charge of an electron is a fundamental property of an electron. It is denoted by the symbol "e" and has a magnitude of 1.6 x 10^-19 coulombs. Electrons are negatively charged, so the charge of an electron is -1.6 x 10^-19 C.

Calculating the Number of Electrons:

To calculate the number of electrons in one coulomb of charge, we can use the equation:

Number of electrons = (Total charge) / (Charge of one electron)

Since the charge of one electron is -1.6 x 10^-19 C, we can substitute the values into the equation:

Number of electrons = (1 C) / (-1.6 x 10^-19 C)

Simplifying the equation:

Number of electrons = -6.25 x 10^18 electrons

Explanation:

In one coulomb of charge, there are approximately -6.25 x 10^18 electrons. The negative sign indicates that the charge is composed of negatively charged electrons.

Summary:

- Charge is a fundamental property of matter and is measured in coulombs (C).
- The charge of an electron is -1.6 x 10^-19 C.
- To calculate the number of electrons in one coulomb of charge, divide the total charge by the charge of one electron.
- In one coulomb of charge, there are approximately -6.25 x 10^18 electrons.