Charge question A, B, C Explanation

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In the discussion about the charge interactions between objects A, B, and C, it is established that A and B repel, as do B and C. This indicates that A and C must have the same sign of charge, leading to the conclusion that option a) is correct. The confusion arose from interpreting the question as asking for a singular truth rather than acknowledging multiple correct options. The source of the question is identified as the Serway and Jewett textbook, specifically the 8th edition. Ultimately, the clarification highlights the importance of carefully reading the question's wording.
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Homework Statement



Three objects are brought together, two at a time. A is brought near B and they repel. B is then brought to C and they repel. Which of the following is true?

a)A and C have the same sign
b) A and C have opposite sign
c)A, B, and C have the same sign
d)One of them is neutral
e)Need additional experiment to determine the signs

I picked c) and it says it is a), why?
 
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Both answers are correct. What book are you using?
 
Serway and Jewett

EDIT: never mind, the question asked what ARE true, not IS...

It says a, c, e (e looked smudged so I couldn't see it)
 
flyingpig said:
Serway and Jewett
What edition and what problem?
 
I think it's the 8th edition, it's just one of those quick quizzes
 

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