Question

The force between two point charges q1 and q2 kept at some distance apart in air is attractive or repulsive when
(1)q1q2 greater than zero
(2)q1q2 smaller than zero

Answer 1

Answer:

1) Its repulsive as (-)*(-)=(+)

2) its attractive as (-)*(+)=(-)

as greater than 0 is +ve value and vice versa