JEE Physics · Hard

Current Electricity: Hall Effect MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Hall EffectHardQuestion 31692

Question

In the Hall effect, a magnetic field B perpendicular to current I in a conductor produces a transverse voltage because:
  1. A
    Magnetic force deflects charge carriers sideways, creating charge accumulation
    Correct
  2. B
    Electric field reverses direction
  3. C
    Resistance increases
  4. D
    Current becomes zero

Correct answer

Magnetic force deflects charge carriers sideways, creating charge accumulation

Explanation

Lorentz force qv×B pushes carriers to one side, creating a charge imbalance and Hall voltage V_H = IB/(ned). Sign of V_H identifies carrier type (electrons vs holes).