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Electromagnetic TheoryLorentz Force

A charged particle moving exactly parallel to a uniform magnetic field experiences magnetic force of magnitude?

  • AZero
  • BqvB
  • C2qvB
  • DInfinite
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Correct Answer: A. Zero
Explanation: F=qvB sinθ; for parallel motion θ=0, so the magnetic force is zero.
Reference: Standard electromagnetic theory: lorentz force
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