Question

define the SI unit of charge?

Answer 1

Coulomb C is SI unit of charge.

Answer 2

$\bf\large\underline{SI\:unit\:OF\:Charge\:!!}$

The SI unit of charge is coulomb (C).

1 Milli coulomb = 1 mC =${10}^{ - 3}$C

1 micro coulomb = 1 µC =${10}^{ - 6}$C

Usually A problem rise here is

What is the number of electrons in one Coulomb of charge?

Answer :-

Here, Q = 1 C

$n = \frac{q}{e}$

$n = \frac{1}{1.6 \times {10}^{ - 19} }$

$n = 6.25 \times {10}^{18}$

Thus One Coulomb is the magnitude of charge possessed by $6.25 \times {10}^{18}$electrons..

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