Question

Calculate the no. of electron constuting one colomb of charge?

Answer 1

$\boxed{Charge on 1 electron= 1.6 × 10^ -19 Coulomb}$

So,
$\boxed{For 1 Coulomb of Charge = 1.6×10^ -19 e}$

$\boxed{1 C = 1÷ 1.6 ×10^ -19}$

1 C = 6.25 × 10^ 18electrons

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Answer 2

Answer: The charge on an electron is negative and it is -1.6⨯10-19 coulomb therefore, 1 C charge is carried by 1/ (-1.6⨯10-19) = 6.25 ⨯ 1018 electrons. Hence if 1 A current flows through a conductor, it implies that

6.25 ⨯ 1018 electrons pass per a second across the cross section of the conductor