Question

Consider a grain of table salt which is made of positive

Answer 1

Answer:

Force, $F=8.23\times 10^{-8}\ N$

Explanation:

It is given that,

Each ion in Na⁺ and Cl⁻ has a charge of, $q=1.6\times 10^{-19}\ C$

Distance between two ions, $d=5.29\times 10^{-11}\ m$

We need to find the electrostatic force. It is given by :

$F=k\dfrac{q_1q_2}{d^2}$

$F=9\times 10^9\times \dfrac{(1.6\times 10^{-19})^2}{(5.29\times 10^{-11})^2}$

$F=8.23\times 10^{-8}\ N$

So, the magnitude of electrostatic force between them is $F=8.23\times 10^{-8}\ N$. Hence, this is the required solution.