What is the force between two small charged of `2 xx 10^(-7)` C placed 30 cm apart in air?

What is the force between two small charged of `2 xx 10^(-7)` C placed

1.	What is the force between two small charged of `2 xx 10^(-7)` C placed 30 cm apart in air?
Answer» `F=(1)/(4piepsi_(0))(q_(1)q_(2))/(r^(2))`. `9xx10^(9)xx(2xx10^(-7)xx2xx10^(-7))/((30xx10^(-2))^(2))` `=4xx10^(-3)`N.

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What is the force between two small charged of `2 xx 10^(-7)` C placed 30 cm apart in air?

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