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      Question

      Which of the following statements is true for a

      conductor in an electric field?
      A The electric field is zero inside the conductor Correct Answer Incorrect Answer
      B The electric field is non-zero inside the conductor Correct Answer Incorrect Answer
      C The potential is constant across the conductor Correct Answer Incorrect Answer
      D The potential varies linearly across the conductor Correct Answer Incorrect Answer

      Solution

      Inside a conductor, free electrons move to cancel any electric field. Thus, the electric field inside a conductor in electrostatic equilibrium is zero. As a result, the potential remains constant across the conductor because there is no electric field to cause a potential difference. This is a fundamental property of conductors in electrostatic equilibrium.

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