Hall EffectHardQuestion 31692
Question
In the Hall effect, a magnetic field B perpendicular to current I in a conductor produces a transverse voltage because:
- AMagnetic force deflects charge carriers sideways, creating charge accumulationCorrect
- BElectric field reverses direction
- CResistance increases
- DCurrent 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).