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PhysicsNEET 2023Force on a moving charge and on a current

Moving Charges and Magnetism

A wire carrying a current II along the positive xx-axis has length LL. It is kept in a magnetic field B⃗=(2i^+3j^−4k^)\vec{B} = (2\hat{i} + 3\hat{j} - 4\hat{k}) T. The magnitude of the magnetic force acting on the wire is:

  1. A.3 IL3\,IL
  2. B.5 IL\sqrt{5}\,IL
  3. C.5 IL5\,IL✓
  4. D.3 IL\sqrt{3}\,IL

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