To determine the charges on objects B and C, we must consider the properties of electric charges: like charges repel each other, and opposite charges attract each other.
1. Given:
- Object A has a positive charge.
2. Analyzing the interaction between A and B:
- It is stated that B repels A.
- Since like charges repel, this means that B must have the same charge as A.
- Therefore, if A is positively charged, B must also be positively charged.
3. Analyzing the interaction between A and C:
- It is stated that C is attracted to A.
- Since opposite charges attract, this means that C must have the opposite charge to A.
- Therefore, if A is positively charged, C must be negatively charged.
Based on this analysis, the charges on the objects can be summarized as follows:
- Object A: positive
- Object B: positive
- Object C: negative
Thus, the answer is:
- The charge on B is positive.
- The charge on C is negative.
So, the correct answer is that B is positively charged, and C is negatively charged.
