Question

Calculate the number of electrons constitute in 0.25 milli coulomb of charge​

Answer 1

Answer:

The Coulomb is a ’derived’ unit. That is, its value depends on the basic units of the metric system, the meter, the kilogram, the second, and the Ampere.

So one Coulomb is defined as the amount of charge collected by an electric current of one Ampere in one second.

The Ampere is defined as the amount of current required to produce a certain magnetic force between a pair of current carrying wires