Question

how many electrons constitute an electric charge of -16 pico coloumb​

Answer 1

GiveN :

• Charge (Q) = - 16 pC

To FinD :

• Number of electrons

SolutioN :

Formula for quantaziation of charge

➜ Q = ± ne

Where,

• Q is charge.
• n is number of electrons.
• e is charge of an electron.

➜ - 16 pC = n * (1.6 × 10^-19)

➜ - 16 * 10^-12 = n * ( 1.6 × 10^-19)

➜ n = - 16 × 10^-12/1.6 * 10^-19

➜ n = - 10 × 10^(-12 + 19)

➜ n = - 10 × 10^7

➛ Number of electrons consisting electric charge is $\sf{10 \times 10^{7}}$.

Answer 2

Given ,

• Charge (q) = -16 pico coulomb

In terms of SI unit ,

Charge (q) = -16 × 10^(-9) c

We know that ,

The charge on a body is an integral multiples of electrons present on it

Mathematically ,

$\boxed{ \sf{Charge \: (q) = ne }}$

Thus ,

-16 × 10^(-12) = n × 1.6 × 10^(-19)

n = -1 × 10^(8)

$\therefore$ The number of charge is -1 × 10^(8)