Three charges $2 q,-q$ and $-q$ are located at the vertices of an equilateral triangle. At the center of the triangle

  • [AIIMS 2019]
  • A

    the field is zero but potential is non$-$zero.

  • B

    the field is non$-$zero but potential is zero.

  • C

    both field and potential are zero

  • D

    both field and potential are non$-$zero

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  • [JEE MAIN 2019]

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