Physics » Magnetism » The Hall Effect

# Summarizing the Hall Effect

## Summary

• The Hall effect is the creation of voltage $$\epsilon$$, known as the Hall emf, across a current-carrying conductor by a magnetic field.
• The Hall emf is given by

$$\epsilon =\text{Blv}\phantom{\rule{0.25em}{0ex}}(B,\phantom{\rule{0.25em}{0ex}}v,\phantom{\rule{0.25em}{0ex}}\text{and}\phantom{\rule{0.25em}{0ex}}l,\phantom{\rule{0.25em}{0ex}}\text{mutually perpendicular})$$

for a conductor of width $$l$$ through which charges move at a speed $$v$$.

## Glossary

### Hall effect

the creation of voltage across a current-carrying conductor by a magnetic field

### Hall emf

the electromotive force created by a current-carrying conductor by a magnetic field, $$\epsilon =\text{Blv}$$