We can prove Coulomb’s law. Let us consider two charges, ‘q1‘ and ‘q2‘; separated by a distance ‘r.’ The force of attraction or repulsion is ‘F’;
F ∝ q1q2 or F ∝ 1/r2
Adding the constant of proportionality, we get;
(in image)
In the above equation, k= 1/4 π ε0. ε0 describes the permittivity of a vacuum. The value of k is nearly 9 × 109 Nm2/ C^2; if we consider the value of ε0 in SI units as 8.854 × 10^-12 C^2 N^-1 m^-2.
Moreover, this theory also describes that like charges repel each other and opposite charges attract each other.
Answers & Comments
We can prove Coulomb’s law. Let us consider two charges, ‘q1‘ and ‘q2‘; separated by a distance ‘r.’ The force of attraction or repulsion is ‘F’;
F ∝ q1q2 or F ∝ 1/r2
Adding the constant of proportionality, we get;
(in image)
In the above equation, k= 1/4 π ε0. ε0 describes the permittivity of a vacuum. The value of k is nearly 9 × 109 Nm2/ C^2; if we consider the value of ε0 in SI units as 8.854 × 10^-12 C^2 N^-1 m^-2.
Moreover, this theory also describes that like charges repel each other and opposite charges attract each other.
(in image)