Static Electricity: Positive & Negative Charges

AI Thread Summary
Static electricity involves the interaction of positive and negative charges, where electrostatic induction causes charge separation. When a charged rod is brought near sphere A, it induces a positive charge on A and a negative charge on sphere B. This occurs because like charges repel and opposite charges attract. Once the spheres are separated, the induced charges remain, preserving the positive and negative states. Understanding these principles clarifies the behavior of charged objects in electrostatic scenarios.
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Homework Statement



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The Attempt at a Solution


i chose positive and negative but i am not sure.
 
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How do you explain your choice?
 
voko said:
How do you explain your choice?

when the rod is put near to sphere A a positive charge accumulated on it and a negative charge on sphere B but I am really confused i think that both spheres can be positive so if you have an answer pls help and explain it :smile:
 
Your answer and your explanation are correct. Due to electrostatic induction, A becomes positive and B negative, and when they are separated, the charges are preserved.
 
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