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NDA 2 2025 GAT, question 52

Topic: Physics

Q52

The rule to determine the direction of a force experienced by a straight current carrying conductor placed in a magnetic field which is perpendicular to it is

  1. (a) Right-hand thumb rule
  2. (b) Fleming’s left-hand ruleCorrect answer
  3. (c) Fleming’s right-hand rule
  4. (d) Hund’s rule

Solution.

Answer: (b) Fleming’s left-hand rule

  1. Fleming’s left-hand rule relates magnetic field, conventional current and the resulting force on a conductor.
  2. The right-hand generator rule concerns induced current, and the thumb rule gives the magnetic field around a current-carrying wire.