Question

two identical metal sphere posses +60C nad -20C of charges .they are bought in contact and then separated by 10cm .the force between them is ???

Answer 1

{(60) ^2+(-20) ^2}÷0.01

=76000

Answer 2

{(60^2)+(-20)^2}÷0.01

= 1600 or 1700 is the answer for this