UPSC Physics Electric Current and Magnetism Question Bank Electricity, Magnetism and Light

  • question_answer
          Which one of the statements given below is not correct?                               [NDA]

    A) A vertical plane passing through the axis of a freely suspended magnet is called the magnetic meridian

    B) A vertical plan passing through the axis of rotation of the Earth is called the geographical meridian

    C) The degree to which the magnetic field can penetrate a medium is known as the relative permeability of the medium

    D) The relative permeability is not a dimensionless quantity

    Correct Answer: D

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