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Author Question: A spherical balloon contains a positively charged particle at its center. True or false, as the ... (Read 67 times)

Awilson837

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on: Jul 28, 2018
A spherical balloon contains a positively charged particle at its center. True or false, as the balloon is inflated to a larger volume while the charged particle remains at the center, which of the following is true?
  1.The electric potential at the surface of the balloon increases.
  2.The magnitude of the electric field at the surface of the balloon increases.
  3.The electric flux through the balloon remains the same.
  4.none of these

Question 2

Consider a collection of charges in a given region and suppose all other
   charges are distant and have a negligible effect. Further, the electric potential is taken to be zero at infinity. If the electric potential at a given point in the region is zero, which of the following statements must be true? (a) The electric field is zero at that point.
   (b) The electric potential energy is a minimum at that point.
   (c) There is no net charge in the region.
   (d) Some charges in the region are positive, and some are negative.
   (e) The charge shave the same sign and are symmetrically arranged around the given point.


  1.(a) only
  2.(d) only
  3.(b), (c), and (d)
  4.(a) and (e)


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shewald78

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Reply #1 on: Jul 28, 2018
Answer to Question 1

3

Answer to Question 2

2


Awilson837

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Reply #2 on: Jul 28, 2018
Thanks


shewald78

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Reply #3 on: Jul 28, 2018
Welcome :)


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