Question

Find the for e between the two charge particles q1= +5 micro-Coulombs and q2= -1 micro-Coulombs and separated 5cm

Answer 1

Given,

$q_1=5\mu C$

$q_2=-1\mu C$

$d=5cm$

$F=\frac{q_1\times q_2}{4\pi \epsilon d^2}$

$=\frac{5\times 10^{-12}\times 9\times 10^{9}}{(0.05)^2}$

$=18N$