alleryStart learning →A magnetic field is applied across a current-carrying strip and a voltage appears across its width. What is this effect called?
AThe Tesla effect
BThe Hall effect
CThe Curie effect
DThe pinch effect
Answer & Solution
Correct answer: B. The Hall effect
1. The magnetic force pushes the moving charges toward one side of the conductor.
2. That leaves a net opposite charge on the other side, so a voltage appears across the width.
3. Creating a voltage across a current-carrying conductor with a magnetic field is the Hall effect.
4. The pinch effect is the squeezing of parallel currents together and is a different phenomenon.
_Source: OpenStax College Physics (CC BY 4.0), Ch 22 "Magnetism", section 22.6 The Hall Effect_
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