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Homework Help: Static electricity

  1. Aug 23, 2013 #1
    1. The problem statement, all variables and given/known data


    2. Relevant equations

    3. The attempt at a solution
    i chose positive and negative but i am not sure.
  2. jcsd
  3. Aug 23, 2013 #2
    How do you explain your choice?
  4. Aug 23, 2013 #3
    when the rod is put near to sphere A a positive charge accumulated on it and a negative charge on sphere B but im really confused i think that both spheres can be positive so if you have an answer pls help and explain it :smile:
  5. Aug 23, 2013 #4
    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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