The force between two charged objects is described by Coulomb's law, which states that like charges repel and opposite charges attract. Object A has a charge of –1 Coulomb, so it will be most strongly attracted to an object with a positive charge.
Among the options provided:
- –1 C (negative charge) would repel
- +2 C (positive charge) would attract
- –2 C (negative charge) would repel
- +1 C (positive charge) would attract
Since charges of greater magnitude exert a stronger force, the charge that would be most strongly attracted by object A (–1 C) is +2 C.