Question

is the force acting between two point electric charges Q1 and Q2 kept at some distance apart in air attractive or repulsive when(1) Q1Q2 isgreater than equal to zero(2) Q1 Q2is less than equal to zero

Answer 1

In both case ,they r repulsive , because in both case ,they r same charge character ,

also they r keep in same medium

the same charge is repulsive ,and opposite charge is attractive in nature