The condition for minimum potential energy of an electric dipole in a uniform electric field is ......

  • A
    $[\vec p]$ and $[\vec E]$ are in the same direction.
  • B
    $[\vec p]$ and $[\vec E]$ are in opposite directions.
  • C
    $[\vec p]$ and $[\vec E]$ are perpendicular to each other.
  • D
    The potential energy of an electric dipole is always constant under all conditions.

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Derive the formula for the electric potential energy of a system of two point charges.

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