Question

A body contains $3$C of positive charge. Does this refer to the total number of protons or positively charged particles present in the body?

Answer 1

Step 1: Given data

Charge of body $q=+3$C

Step 2: Finding the number of protons or positively charged particles

We know that charge of a proton is $1.602\times {10}^{-19}$C

Let $n$ be the number of protons then,

$n\times$$1.602\times {10}^{-19}=3$

$n=\frac{3}{1.602\times {10}^{-19}}$

$n=1.87\times {10}^{19}$

Hence, $3$C of positive charge does not refer to the total number of protons or positively charged particles present in the body.