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      Question

      A current-carrying conductor is placed perpendicular to

      a uniform magnetic field. The force on the conductor is given by:
      A F=B I L Correct Answer Incorrect Answer
      B F=B I Lsinθ Correct Answer Incorrect Answer
      C F=B I Lcosθ Correct Answer Incorrect Answer
      D F= B2 I L Correct Answer Incorrect Answer

      Solution

      The force on a current-carrying conductor in a magnetic field is given by: F=BILsinθ For a conductor placed perpendicular to the field, θ=90∘, so sin 90° = 1, and F=BIL.

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