Question

A certain particle carries 2.5 x 10⁻¹⁶ of static electric charge. Calculate the number of electrons present in it.

Answer 1

Answer:

Number of electrons present on it = 1563

Explanation:

Given,

the total charge present on the particle is ,Q = 2.5\times 10^{-16}

As we know that charge carried by each electrons is , q = 1.6\times 10^{-16}

Since, we have to calculate the total number of electrons present on the particle.

Lets consider number of electrons present on the particle is n,

then n can be given by

$n\ =\ \dfrac{Q}{q}$

   $=\ \dfrac{2.5\times 10^{-16}}{1.6\times 10^{-19}}$

      $=\ 1.5625\times 10^{3}$

      =1562.5

Since, the number of electrons can not be 1562.5 according to rule of quantisation of charge rule, So the number of electrons will be 1563.