Question

How many electrons are there in one coulomb of electricity?

Answer 1

Step 1: Given data and assumptions,

Net charge, $Q=1C$

Charge of an electron, $e=1.602\times {10}^{-19}C$

Let $n$ be the number of electrons.

Step 2: Calculating number of electrons,

We know that, $Q=ne$

$$\begin{gathered} n=\frac{Q}{e} \\ n=\frac{1}{1.602\times {10}^{-19}} \\ n=6.24\times {10}^{18} \end{gathered}$$

Therefore, there are $6.24\times {10}^{18}$ electrons in one coulomb.