To determine which pair of objects will have an attractive electric force, we need to consider the nature of electric charges. Opposite charges attract, while like charges repel.
Let's analyze each pair:
- Pair A: (-2, -1) → Both charges are negative. They will repel each other.
- Pair B: (-3, +1) → One charge is negative and the other is positive. They will attract each other.
- Pair C: (+3, +1) → Both charges are positive. They will repel each other.
- Pair D: (+1, +2) → Both charges are positive. They will repel each other.
The only pair that will have an attractive electric force is Pair B.
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