How Many Electrons is Equal to 1 Coulomb

Introduction

Electrons are the subatomic particles constituting the flow of current in a wire. The charge on a single electron is denoted by ‘e’. Coulomb is the unit of Electric charge in the SI Unit System. The quantity of charge on an object can be calculated by multiplying the elementary charge and the number of elementary charges on the object.

What are the electrons?

The electrons are the subatomic particles having a negative charge on them. Electrons have an electric charge which is equal to

\begin{equation}

1 \mathrm{e}=1.602 \times 10^{-18} \mathrm{C}

\end{equation}

An electron constitutes the electric current which flows through a wire.

The mass of an electron at rest is equal to 9.11 \times 10^{-31}

kilograms(kg).

What is a coulomb?

Coulomb is the amount of electric charge delivered by a one-ampere constant current through a wire in one second. Coulomb is represented by the symbol ‘C’.

1 coulomb is equal to how many electrons?

As we know charge on

\begin{equation}

1 \mathrm{e}=1.602 \times 10^{-18} \mathrm{C}

\end{equation}

And the total given charge = 1C

Total no of electrons =

\begin{equation}

\frac{1}{1.602 \times 10^{-19}}=6.24 \times 10^{18} \mathrm{e}^{-}

\end{equation}

So the 1 coulomb has 6.24 \times 10^{18} e.

Solved Questions:

Ques 1: How many electrons are there in 4 coulombs of charge?

Ans: Charge on

\begin{equation}

1 \mathrm{e}=1.602 \times 10^{-18} \mathrm{C}

\end{equation}

total given charge = 4C

Total no of electrons =

\begin{equation}

4 \div 1.602 \times 10^{-19} \mathrm{C}=2.496 \times 10^{19} \mathrm{C}

\end{equation}

Ques 2: How many electrons are there in 10 coulombs of charge?

Ans: charge on

\begin{equation}

1 \mathrm{e}=1.602 \times 10^{-18} \mathrm{C}

\end{equation}

total given charge = 10C

Total no of electrons =

\begin{equation}

10 \div 1.602 \times 10^{-19} \mathrm{C}=6.24 \times 10^{19} \mathrm{C}

\end{equation}