We construct a closed Gaussian surface in the shape of a spherical balloon. Assume that a small glass bead with total charge Q is in the vicinity of the balloon. Consider the following statements:

A. If the bead is inside the balloon, the electric flux over the balloon's
surface can never be 0.
B. If the bead is outside the balloon, the electric flux over the balloon
surface must be 0.

Which of these statements is valid?


1.Only A is valid.
2.Only B is valid.
3.Both A and B are valid.
4.Neither one is valid.


3

Physics & Space Science

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