Two equal charges are placed at a separtion of 1.0 m. What should be the magnitude of the charges so that the force between them equals of a 50 kg person?

Explanation

`Let each charge =qC,AB =1m `
` wt of 50 kg person `
` = 50*g = 50*9.8 = 490N `
` F=(9*10^9)*(q^2)/r^2=490N `
` q^2=(54.4*10^-9) `
` q=(sqrt (54.4 xx (10^-9)))`
` = (10^-5 xx 23.323 `
` = 23.3236 xx (10^-5) Coulomb `
` = 2.3 xx (10^-4 ) C `