Derivation for coulomb law

I just said it on Google voice predictor... Only some was typed

Kasam se itna likhne ke liye to धरय chahiye ???

It states that force of attraction and repulsion between two charges is directly proportional to product of charges are inversely proportional to square of distance between them. F proportional to q1.q2 F proportional to 1/r^2 According to the law That is F proportional to q1.q2 /r^2 To remove the proportionality sign we substitute k which is equal to 1/4¶€°=k [ which is equal to 9×10^9 Nm^2 /C^2] AND €°=8.854×10^-19 That is F=1/4¶€° [ q1.q2 /r^2] If €r Is relative permittivity of a medium (in air value of €r is equal to 1) F=1/4¶€°€r [ q1.q2 /r^2] P. S: ¶=pi €°= Epsilon 0 €r= Epsilon r K= constant of proportionality And absolute permittivity in free space = to 1/4¶€°=k ☺️☺️☺️

Kabhi kabar book bhi pad leni chahiye

See in book