The plot of Coulomb's force F with separation distance r for two pairs of charges (1 μC, 2 μC) and (2 μC, -3 μC) are as shown. The graph B corresponds to
1
(1 μC, 2 μC)
2
(2 μC, -3 μC)
3
Both (2 μC, -3 μC) and (1 μC, 2 μC)
4
none of the above
The plot of Coulomb's force F with separation distance r for two pairs of charges (1 μC, 2 μC) and (2 μC, -3 μC) are as shown. The graph B corresponds to