Question

Why can one ignore quantisation of electric charge when dealing with macroscopic i.e., large scale charges ?

Answer 1

• Quantization of charge means that the amount of charge on a body is integral multiple of smallest unit of charge, which is electronic charge $e$ i.e. $Q=ne,$ where n is integer
• This smallest unit of charge$\left(e\right)$ is practically very small, $e=1.6\times {10}^{-19}C$.
• On macroscopic level, amount of charge transferred is very large as compared to $e$.
• Therefore, quantization has no significance at such a large scale.