If there is only one type of charge in the universe,then ($ \vec{E} $ = Electric field,$ \vec{d}s $ = Area vector):

  • A
    $ \oint \vec{E} \cdot d\vec{s} \neq 0 $ on any surface
  • B
    $ \oint \vec{E} \cdot d\vec{s} $ could not be defined
  • C
    $ \oint \vec{E} \cdot d\vec{s} = \infty $ if charge is inside
  • D
    $ \oint \vec{E} \cdot d\vec{s} = 0 $ if charge is outside,$ = \frac{q}{\varepsilon_{0}} $ if charge is inside

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