Three charges $2 q,-q$ and $-q$ are located at the vertices of an equilateral triangle. At the center of the triangle
  • Athe field is zero but potential is non$-$zero.
  • Bthe field is non$-$zero but potential is zero.
  • C
    both field and potential are zero
  • Dboth field and potential are non$-$zero
AIIMS 2019, Medium
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