Question

how many eletrons constitute in 3 microcoulumb

Answer 1

Charge of an electron = 1.6 × 10^-19 Coulomb

3 micro Coulomb = 3 × 10^-6 Coulomb

No. of electrons in 3 μC = (3/6) × (10^-6 / 10^-19)
= 5 × 10^12
= 5 trillion

No. of electrons in 3 μC is 5 trillion